Office Chair Metal Base Upgrade Kit - Chrome Edition Breathe new life into your chair with this base upgrade kit, equipped with a brand-new chrome gas lift, new chrome hooded castors and a sleek 2-tone black and chrome design that is sure to turn your favorite chair into an eye-catching centerpiece. Features: Durability Made to Last - Steel-reinforced base to ensure a quality seating experience for you Professionalism In the Comfort of Your Own Home - Slick and modern design that even the most modern offices would envy. Elevate Your Seating Experience - Brand-new, high-quality gas lift that lets you find the perfect height. Glide With Ease - High quality Chrome hooded nylon castors offering the perfect amount of freedom to let you slide around or stay in place when needed. Specifications: Polished chrome gas lift Nylon base center with reinforced steel built for durability Eye-catching steel/chrome legs 28mm diameter inner piston for mounting to chair mechanism 50mm Chrome castors Total Height of Base Kit: 370mm-450mm 12-month warrantee (excluding wear and tear on the surface) Requires easy assembly with all tools provided. What's in the box 1x Chrome Gas Lift 1x Nylon Base Center 5x Chrome Legs 5x 50mm Chrome Hooded Castors 1x Set of Hardware and tools 1x Instruction Manual