Seating Inc. | Sensible style for everyday use. This comfortable chair provides great support with a waterfall seat and built in lumbar support with ratchet back height adjustment. Lifetime warranty is standard with this built-to-last chair made with a 7 ply compound curved American plywood seat. Black composite back frame with mesh that is available in 8 color options finishes the look. Also available in matching swivel, stool, and stackable configurations for users up to 300lbs.