Super Pet Crittertrail Fun-Nels Tube Set - Value Pack</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Allows for expansion of CritterTrail habitats</li><li>Includes: 1 - 1.75" Tube， 2 - 3.5" Tube，  2 - 10" Tube， 4 - Connector Rings</li><li>Universally connectable</li><li>2.25" diameter and a variety of shapes and lengths</li><li>For hamsters， gerbils or mice</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51CtVPNlV1L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31aIH4yrWZL.jpg' noproxy></br>