Serenity mid-back chair comfortably accommodates a wide range of body types and features cushioned leather seat and back for a luxurious seating experience in any working environment. Especially designed for the big and tall person, the weight capacity is 500 lb. Functions include a 360-degree swivel seat, pneumatic seat-height adjustment from 19-1/2" to 22-1/2", tilt lock and tilt tension. Big and Tall Leather Mid-back Chair also features a five-star, oversized steel base equipped with sturdy casters for smooth chair movement. Seat measures 21-1/2" wide x 22" deep. Back size is 22" wide x 23" high.