Allow your pet mouse or hamster extra space to explore and exercise with Trixie's Indoor Run. This is a very versatile product that can be assembled in a variety of different ways. For indoor use only. 8 x Varnished, metal panels that can be connected in a variety of ways to provide a run for your mouse or hamster, This run is for indoor use only, This product allows your pet an element of freedom and extra space to explore, Expandable, not only can this run be made up in a variety of ways, you can also add additional panels on, Each panel measures 34cm x 23cm