{"product_id":"topstar-sitness-rs-sport-plus-office-swivel-chair-black-green-ergonomic-gaming-chair-with-active-sitting-technology","title":"Topstar Sitness RS Sport Plus Office Swivel Chair Black Green Ergonomic Gaming Chair with Active Sitting Technology","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003c\/p\u003e\n\u003cdiv class=\"product-description\"\u003e\n\u003ch1\u003eTopstar Sitness RS Sport Plus Office Swivel Chair Black Green Ergonomic Gaming Chair with Active Sitting Technology\u003c\/h1\u003e\n\u003cp\u003eExperience the perfect fusion of gaming comfort and ergonomic excellence with the \u003cstrong\u003eTopstar Sitness RS Sport Plus Office Swivel Chair in striking black and green\u003c\/strong\u003e. This \u003cstrong\u003epremium German-engineered chair\u003c\/strong\u003e features revolutionary \u003cstrong\u003eSitness active sitting technology with Body Balance Tec joint\u003c\/strong\u003e that provides three-dimensional seat mobility for enhanced back health and comfort. Designed for \u003cstrong\u003egamers, office professionals, and home workers\u003c\/strong\u003e, this chair combines \u003cstrong\u003esporty aesthetics with medical-grade ergonomics\u003c\/strong\u003e, offering up to \u003cstrong\u003e8 hours of comfortable daily use with synchronous mechanism and adjustable features\u003c\/strong\u003e for the ultimate sitting experience.\u003c\/p\u003e\n\u003c!-- Key Features Section --\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"key-features\"\u003e\n\u003cli\u003e🎮 \u003cstrong\u003eGaming \u0026amp; Office Hybrid Design\u003c\/strong\u003e: Perfect for gaming sessions and professional work\u003c\/li\u003e\n\u003cli\u003e⚡ \u003cstrong\u003eSitness Active Technology\u003c\/strong\u003e: Revolutionary 3D movement joint for back health\u003c\/li\u003e\n\u003cli\u003e🔄 \u003cstrong\u003eSynchronous Mechanism\u003c\/strong\u003e: Coordinated seat and backrest adjustment\u003c\/li\u003e\n\u003cli\u003e🌟 \u003cstrong\u003eBlack \u0026amp; Green Sports Styling\u003c\/strong\u003e: Modern gaming aesthetic with ergonomic function\u003c\/li\u003e\n\u003cli\u003e🇩🇪 \u003cstrong\u003eMade in Germany\u003c\/strong\u003e: Premium quality with 3-year warranty\u003c\/li\u003e\n\u003cli\u003e👥 \u003cstrong\u003e110kg Weight Capacity\u003c\/strong\u003e: Robust construction for long-term durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c!-- Product Specifications Section --\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eProduct Specifications\u003c\/h2\u003e\n\u003cdiv class=\"specs-grid\"\u003e\n\u003cdiv class=\"spec-category\"\u003e\n\u003ch4\u003e📐 Dimensions \u0026amp; Capacity\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Height\u003c\/strong\u003e: 45-55cm adjustable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Width\u003c\/strong\u003e: 49cm comfortable seating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat Depth\u003c\/strong\u003e: 49cm optimal support\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackrest Height\u003c\/strong\u003e: 98cm (including headrest)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Weight Capacity\u003c\/strong\u003e: 110kg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax User Height\u003c\/strong\u003e: 192cm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003e\n\u003ch4\u003e🔧 Mechanism \u0026amp; Technology\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSitness Technology\u003c\/strong\u003e: Body Balance Tec 3D joint\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight Adjustment\u003c\/strong\u003e: Toplift pneumatic system\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSynchronous Mechanism\u003c\/strong\u003e: Coordinated tilt adjustment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Force\u003c\/strong\u003e: Body weight adaptive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocking\u003c\/strong\u003e: Infinite position locking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase\u003c\/strong\u003e: Large stable plastic with safety wheels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003e\n\u003ch4\u003e🎨 Design \u0026amp; Materials\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor Scheme\u003c\/strong\u003e: Black and green sports design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBackrest\u003c\/strong\u003e: Breathable mesh with modern look\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeat\u003c\/strong\u003e: Large contoured for maximum comfort\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArmrests\u003c\/strong\u003e: Height-adjustable TW1 type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheels\u003c\/strong\u003e: Double safety castors with brakes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification\u003c\/strong\u003e: GS quality mark certified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"spec-category\"\u003e\n\u003ch4\u003e🏥 Health \u0026amp; Ergonomics\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsage Duration\u003c\/strong\u003e: Up to 8 hours daily\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack Support\u003c\/strong\u003e: Medical-approved ergonomics\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMovement\u003c\/strong\u003e: 3-directional active sitting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuscle Training\u003c\/strong\u003e: Unconscious back strengthening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePain Prevention\u003c\/strong\u003e: 56% reduction in back pain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlood Circulation\u003c\/strong\u003e: Enhanced spinal disc health\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Package Contents Section --\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cdiv class=\"package-contents\"\u003e\n\u003cdiv class=\"package-item\"\u003e\n\u003ch4\u003e📦 Complete Package Includes\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e🎮 1x Topstar Sitness RS Sport Plus Chair (Black\/Green)\u003c\/li\u003e\n\u003cli\u003e🔧 Complete assembly hardware and tools\u003c\/li\u003e\n\u003cli\u003e📋 Detailed German assembly instructions\u003c\/li\u003e\n\u003cli\u003e✅ GS quality certification and 3-year warranty\u003c\/li\u003e\n\u003cli\u003e📞 Topstar customer support and service information\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c!-- Advantages Section --\u003e\n\u003csection class=\"section\"\u003e\n\u003ch2\u003eWhy Choose the Topstar Sitness RS Sport Plus Chair?\u003c\/h2\u003e\n\u003cul class=\"advantages\"\u003e\n\u003cli\u003eRevolutionary Sitness active sitting technology with Body Balance Tec joint provides three-dimensional seat movement that unconsciously trains back muscles and prevents pain\u003c\/li\u003e\n\u003cli\u003ePerfect hybrid design combines gaming chair aesthetics with professional office ergonomics for versatility in work and play environments\u003c\/li\u003e\n\u003cli\u003eGerman engineering excellence ensures premium quality construction with rigorous testing and GS safety certification for peace of mind\u003c\/li\u003e\n\u003cli\u003eAdvanced synchronous mechanism allows coordinated adjustment of seat and backrest inclination with body-weight adaptive spring force\u003c\/li\u003e\n\u003cli\u003eGenerous 110kg weight capacity and 192cm user height accommodation makes it suitable for a wide range of body types and sizes\u003c\/li\u003e\n\u003cli\u003eMedical research-approved ergonomics show 84% increased activity while sitting and 56% reduction in back pain for users\u003c\/li\u003e\n\u003cli\u003eEight-hour daily usage rating makes it perfect for full-time office work, extended gaming sessions, and home office applications\u003c\/li\u003e\n\u003cli\u003eBreathable mesh backrest with modern sports styling in black and green provides comfort and visual appeal\u003c\/li\u003e\n\u003cli\u003eInfinite position locking allows you to find and maintain your perfect sitting angle throughout the day\u003c\/li\u003e\n\u003cli\u003ePremium Toplift pneumatic height adjustment with deep gas spring ensures smooth and reliable operation\u003c\/li\u003e\n\u003cli\u003eLarge contoured seat design maximizes comfort during extended sitting periods without pressure points\u003c\/li\u003e\n\u003cli\u003eHeight-adjustable armrests provide customizable upper body support for optimal working and gaming positions\u003c\/li\u003e\n\u003cli\u003eDouble safety castors with load-dependent brakes ensure stable movement and secure positioning on various floor types\u003c\/li\u003e\n\u003cli\u003eThree-year manufacturer warranty backed by Topstar's reputation as Europe's leading ergonomic chair specialist\u003c\/li\u003e\n\u003cli\u003eMade in Germany quality ensures sustainable manufacturing, recyclable materials, and superior craftsmanship standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cstyle\u003e\n        .product-description {\n            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;\n            line-height: 1.6;\n            color: #333;\n            max-width: 1200px;\n            margin: 0 auto;\n            padding: 20px;\n        }\n        \n        .section {\n            margin-bottom: 40px;\n            clear: both;\n        }\n        \n        h1 {\n            font-size: 28px;\n            color: #2c3e50;\n            margin-bottom: 20px;\n            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