Our shoe holder is designed with top flaps at the behind, along with little bumps on the surface to prevent the upper shoe from slipping off. The shoe storage organizer is made of high-quality ABS plastic so that it is easy to clean with a wet cloth. The shoe stacker is easy to adjust the height. If you want to higher, just hold the upper and lower pieces and pull them to both sides. The shoe slot has four adjustable heights, as you can adjust to 2.7'', 4.3'', 6.4'' and 7.2'', ensure not squeeze, destroy shoes, suitable for most shoes. Details:White3.1" x 7.2" x 10"2.05 lb.10 piece setPlastic