YSP1023 Features: * Perfect way to start expanding your Critter Trail home * Shapes and sizes so you can create a huge playground for your pet * Get three sizes of fun nels tubes (five tubes total) and fun nels rings * Start turning your Critter Trail habitat into a fantastic fun nel city * For hamsters, mice, gerbils or other small animals Includes: * Includes the following fun-nels and accessories: 1.75 tube, 2 each 10 straight tubes, 2 each 3.5 tubes, 4 each connector rings Options: * Available in a variety of colors