Tenjam 41007AXWG 13" White Granite Twisted Hex Stool - Twist and shout… this stacking seat has a twist and it's more than just the cool looks. This stool can be used in a swimming pool or as seating in a school. This stool is 13" and features a white granite finish. All three heights of Twisted Hex are stackable and all heights can be stacked together. The open bottom and dual hand holds allows you to place the stool anywhere on the tanning ledge in an instant, then easily remove it from the pool and use it on the patio for extra seating.