【Big space for your pet】 The exterior can expand the space of the cage and give the mice more space to play. 【easy installation】Hamster hoses can be easily connected by hands . It’s easy and convenient. You can assemble them at any time. is. 【transparent tube】 : You can see your pet directly by your pet. through the transparent tube and can thus better observe every movement of the animal. 【solid】 : These tubes are made of rigid plastic to prevent the animal from biting them. Hamster tubes are more fun and durable. Tubes are more economical for the owner. 【mass deployment】 Change and assembly of the tubes will. You can assemble multiple pipes to connect them together; the hamster bath with the same diameter.