FDW chairs, through its pursuit of excellence and continuous efforts, have added the element of "health" to the traditional "sitting culture" vigorously promoting "a healthy sitting culture" and hope that people can maintain the passion of life every day as well as creating vitality. ?SPECIFICATION: Color: Black Material: Mesh Adjustable Seat height: 17.5”-20.5” Maximum Weight Capacity: 250 LBS ?Product Details: Ergonomic backrest with lumbar support breathable padded seat 360 degrees rotation & smooth-rolling casters Height adjustment handle ?What’s in the package? FDW office chair x1 Tools for assembly x1 User manual x1 ?Multi-USE CHAIR: Office Chair/ Desk Chair / Computer Chair / Task Chair / Ergonomic Chair / Swivel Chair ?Notes: We strongly recommend reading the user manual before assembly. Assemble tools are included.