Saddle Seat Lab Stool, Backless, Supports Up to 250 lb, 21.25" to 26.25" Seat Height, Black Seat, Black Base Pneumatic lift adjusts height with simple foot pedal plate or with the height adjustment lever. To engage the foot pedal plate, simply use your heel and press down. Foot pedal operation allows for a hands-free adjustment. Saddle seat helps keep hips engaged, encourages better posture and may allow better breathing from the diaphragm. Five-star nylon base for stability. Easy-to-clean vinyl for easy maintenance. Height-adjustable between 21" to 27" to fit a variety of user heights. Our Price Buys you: 1