Five-Leg Pneumatic Exam Stools with backrest offer smooth height adjustment with a touch of the lever on the pneumatic lift. Sit in comfort on a 15"-diameter, vinyl upholstered seat cushion supported by 3" dense foam padding. The five-leg cast aluminum base with Wall Savers ™ protects against scuffmarks and offers a textured surface for foot grip. Travels easily on 2", single-wheel, hard-rubber casters. Choose from 12 upholstery colors.