Details: Designed for comfort and durability, this chair is tailor made for people of almost any size or height! The OFM Big and Tall Oversize task chair features an ultra-thick 5.5" high density foam seat over a sturdy 3/4" plywood seat frame. It offers simple and intuitive controls such as gas lift seat height adjustment, back height adjustment, and 360 degree swivel. 400lb weight capacity. This model meets or exceeds industry standards for safety and durability, and is backed by OFM's Limited Lifetime Warranty.