SD Gaming creates the perfect gaming environment with this stylish and ergonomic office chair. The Contoured Swivel Gamer/Office Chair with Tilt and Height Adjustable Seat and Arms by SD Gaming features a tapered 19"W x 23"H back with lumbar support. The height adjustable lever can be pulled out to recline the back up to 30-degrees then push it in to lock it into place. The tension control knob, below the seat, adjusts ease of movement for the back angle. The 20"W x 17"Deep seat adjusts in height from 18.5"-22"H. The nylon arms also adjust in height for added comfort. The PU/vegan leather covering combines red and black for a sporty look. The durable steel 5-star base features a sleek chrome finish and nylon casters that make it easy to move.