Belleze High Back Executive Adjustable Leather Ergonomic Desk Office Chair (Brown) Ergonomic office chair with lumbar support and pneumatic seat height adjustment Seat Dimensions: 19"(W) x 19.5"(D) Back Dimensions: 19"(W) x 25.5"(H), much wider and taller Adjustable Height For Seat: 42" - 45" ; adjustable height Weight Limit: 330LB; easy assembly upon arrival