Ideal for narrow tubs. Slip-resistant rubber tips. Blow-molded plastic seat is 12 in diameter; height of seat adjusts in 1" increments from 15(1/2)-20(1/2)". Anodized aluminum legs. 13(1/2)"W x 13(1/2)"D x 15(1/2)"H. weight capacity: 250 lbs. Lifetime limited warranty.