Tower Series Aquarium Stands have sides that can be decorated with items to finish off any room in your house. These aquarium stands are made of Medium-Density Fiberboard (MDF). Two distinct advantages of MDF are its water resistance and its overall strength. The Ready-To-Assemble Construction of these aquarium stands result in increased strength and stability by using Metal-To-Metal locking cam assembly fasteners. The solid tops offers greater versatility over those with mere “lip only” construction, allowing these aquarium stands to be safely used with a variety of tanks, or other pet habitats. Available in 4 sizes, 10 gallon (10X20X28), 20 gallon (12X30X28), 55 gallon (13X48X28) or 75 gallon (18X48X28).