function: the external pipe can expand the space of the Cage more, making the activity space of mouse people larger.

Product Introduction: a set of pipes includes one long straight pipe, two short straight pipes, one three-way pipe, and four separate elbow pipes, A total of these 8 acrylic cage round holes are 6.0. Just plug the pipe belt tire into the cage round hole first and plug the pipe so that it can be connected tightly, the diameter of the round hole of the acrylic cage is 5.7 --- 5.9. Put the pipe into the round hole of the cage separately, and cover the pipe with white belt tire from the cage, so the connected pipe will not fall down, but the pipe will shake, for an ordinary wire cage, use Vice to cut a round hole of the cage wire, buy a buckle, clip the short straight pipe on the buckle, and clip the buckle on the cut wire hole.