[Three-point Revision: Thickened base plate supports the high stability of the chair. Change the fabric structure not easy to wear; The last updated is curved back structure design more three-dimensional and stylish "Multi-Function: Chair allows for 3.94 inches of height adjustment. It also features 360° rotation; With the 30° recline and structure of distributing the pressure-resistant it can reduce your bodys pressure" Comfortable Material: The ergonomic chair uses high density sponge soft cushions and breathable mesh suitable for sitting and working for more than 8 hours cool and comfortable; The chair frame made of FSC-Certified wood Ergonomic Design: The adjustable work chair adopts an ergonomic S-curve design fit your back well. Use soft breathable mesh; Reduce user fatigue suitable for sedentary sitting Flip-up Armrests: The home desk chair with 90° Adjustable flip-up arms can place the chair under the desk to save space. Suitable for office bedroom study room and living room Easy Installation: Simple assembly and can be easily completed in fifteen minutes; If you have any questions with the chairs please let us know]