Specifications:Size: Height – 830mm, Seat height – 460mm.Under structure made of 19mm dia and 1.2mm thick MS cold rolled close annealed (CRCA) tube.Chair is fit with upholstered seat and back made from 12mm hot press ply with PU molded foam of 50 to 55 density.Tablet made up of 15/3.5 mm thick PPCP material with push & turn mechanism.Heavy duty wire mesh tray of size, Width: 400mm X Depth: 310mm X Height: 110mm (± 10mm) for keeping books or bag.Overall appearance of the chair as shown in picture.