Doctor's Comfort 6176 has a 5-leg base with twin wheel hard floor casters and an air circulating weave construction. It can accommodate a maximum of 300 lbs. It has fully adjustable arms, contoured seat and tilt seat lever function. The height is adjustable to 17 1/4 and 23 3/4 with the use of pneumatic cylinder. The angle and height of backrest are also adjustable.