Now get the benefits of the Kneeling Chair Plus with the added comfort of TEMPUR® pressure-relieving material! The Sit4Less Kneeling Chair Plus offers more adjustability for correct positioning and longer comfort. Additional features include: Gas lift height adjustment from 18 to 23 inches which also allows the chair to swivel, High quality polyurethane foam in the seat and shin pads, 5 -star base with nylon casters and upgraded fabric. PLUS TEMPUR® pressure-relieving material in the seat and leg rest of the kneeling chair for added support and comfort! Available in Black Only. (Assembly Required)