Stable Stilts - Design to keep the stabilizing of the Niteangel Multi-Chamber Hamster House, to prevent its tilt when hamster keep digging the bedding materials, Height of Stilts - Based on the thickness of your bedding materials & the height of the cage, please select the reasonable height for your cage, there have 4.33''-inch & 5.9''-inch height available to choose, Set of 4 Stilts is available for all rectangle or square Niteangel Multi-Chamber Maze House. And the set with 5 Stilts is devised for L-Shape Niteangel 3-Chamber Hamster Maze House. Please note that it only fits for Niteangel brand, not match for other brand hamster maze, Easy to assemble - Simply plug the high-quality stilts into the bottom corner of hamster maze house, brings you a sturdy house with stilts, Pet-friend Materials without nails - Made with Solid beech wood, the selected premium wood is sanded smooth to safety usage