About this item Quality materialsThe hamster pipes are made of high density plastic, sturdy but relatively easy to disassemble/change.Easy to clean.Perfect toy for hamster, save every pleasant time. Transparent pipe You can see the condition of the pet in the pipe through the transparent pipe and better observe every movement of the animal. Freely combined: each section of this hamster tube can be disassembled and combined freely, you can create unique toys for your pet according to your own ideas. Size The external pipe leaves more room to enlarge the cage, giving the hamster more room to move around. The inner diameter of the pipe is 5.5 cm (about 2.17 inches). Fun Pet Tube These hamster tunnels and tubes are expandable and designed to connect to other habitats, creating unlimited living space for your hamster, gerbil or rat. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin