Jotco 10 Gallon Tank Topper 20.5" Long Free Toy Turns any 10 Gallon Tank into a Pet Penthouse!! Dimensions are 20.5" x 11" x 11" Suitable for Hamsters, Gerbils, Degus, Rats and other similar size pets. All Jotco Tank Toppers come fully assembled with no extra steps. Just let down the ramp and set it on your tank! Buy this item and receive a free cage accessory/toy! Now through 11/20