Norris Premium Leather Chair with Lumbar Support

• Leather:A grade Italian imported cowhide, 1.3-1.5mm thick, meets GB/T 16799-2008 standards• Chassis:Three-handle wire-controlled chassis, lockable at any angle, with a tilt adjustment of 128° and sliding seat cushion capability• Gas Spring:Samhongsa four-stage gas spring with seamless steel pipe, filled with 99.99% pure nitrogen, certified by TUV and ISO. Weight capacity up to 300 lbs• Five Star Base:High-quality aluminum alloy base, die-cast and polished, passing static pressure test exceeding BIFMA 5.1 standard• Silent PVC Castor:High-quality semi-aluminum silent casters, certified by SGS/Greenguard gold medal/TUV ergonomic standards.