Part of Lorell's Wellness by Design collection, this Accucel Executive Chair is office seating approved by the American Chiropractic Association. Lumbar Accu-pressure promotes increased circulation. Accucel technology provides targeted comfort and support. Dense, EVA convoluted foam in the lower back area features a durable open-mesh covering. Luxurious, black bonded leather upholstery provides a sleek look. Functions include pneumatic seat-height adjustment from 20-1/2" to 24-1/4" , tilt (from 102 to 119 degrees) and tilt lock. Arm-integrated fingertip controls allow easier seat height and tilt lock adjustment. 26" five-star nylon base is equipped with 1-24/25" diameter dual-wheel casters for easy chair movement. Seat measures 21" wide x 18-1/2" deep x 6-1/2" thick. Back size is 24-1/4" wide x 27-1/4" high x 6-1/4" thick. Executive chair meets or exceeds BIFMA standards. Weight capacity is 275 lb.