* Upholstery: Premium Italian leather or top-grain cowhide leather surface;
* Board: The backrest is made of double-layer board, with a density of ≥600kg/m³ multi-layer board, which has undergone drying and high-temperature lamination treatment, remaining stable in shape and free from mold. The rear board is upholstered with leather;
* Sponge: 45# density virgin high-elasticity sponge;
* Base: Zhongfei base, with one-position locking function;
* Gas lift: High-quality electroplated gas lift, 65D-4 stroke;
* Chair legs: High-strength 350# aluminum alloy high legs, cast in one piece by aluminum alloy, with a static pressure test of 1136KG, meeting BIFMA standards;
* Casters: 50# Noise-free electroplated casters.