Specification: Name: Hamster Toy Cage Type: hamster tunnel pipe connection plate Material: plastic Color: random color Dimensions: about 9.2cm/3.62in OD; about 5.5cm/2.17in Quantity: 1 piece Features: Hamster tunnel pipe connection plate, you can install pipes inside and outside the cage at will, increasing the fun of hamster activities. Caliber about 5.5cm / 2.17 in, suitable for hamsters, squirrels, hedgehogs, guinea pigs and other small pet cages. You can connect various pipes and do more modeling channels. The material is plastic, random in color, flexible, stretch resistant and easy to install. Note that the product does not contain hamster tunnel tubes! List: 1*hamster toy