Basyx Executive Swivel Chair, High-back, 25"x25"x46-3/4", MY Executive high-back chair features tailored black leather upholstery and padded wood arms. Functions include pneumatic seat-height adjustment (from 18-1/2" to 21"), 360-degree swivel, knee tilt, tilt tension and tilt lock. Five-star wood base has 2" hooded dual-wheel casters. Seat size is 19-1/2" wide x 17-3/4" deep. Back size is 19-3/4" wide x 25-3/4" high. High-back chair meets or exceeds ANSI/BIFMA and ISTA performance standards.