Natia Leather Office Chair with Wraparound Lumbar

• 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.