Mid-back leather chair with simple adjustment

· Leather: A-class imported Italian cowhide leather, 1.3–1.5 mm thick, complies with GB/T 16799-2008 standards. · Frame: Sturdy frame with gentle tilt function, lockable at multiple angles, maximum tilt angle up to 127°. · Gas spring: Samhongsa 4-stage gas spring with seamless steel tube, filled with 99.99% pure nitrogen. TÜV and ISO certified, load capacity up to 136 kg. · Five-star base: High-quality, polished die-cast aluminum five-star base, tested according to BIFMA 5.1 standards for maximum stability and durability. · Quiet PVC casters: Semi-aluminum PVC casters, SGS, Greenguard Gold and TÜV ergonomically certified, provide quiet and smooth mobility.