*Upholstery: Premium western leather or top-grain yellow cowhide for the 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: 2.5mm thick square plate;
* Gas lift: High-quality electroplated gas lift with a 120mm stroke;
* Chair legs: High-strength 330# 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.