DESC: The My First Home Tank Topper converts any 10 gallon tank into a multi-level high rise for hamsters, gerbils, and mice! The Wire Tank Topper snaps together in minutes to double the size of any 10 gallon tank. The well ventilated wire design provides pets with plenty of fresh air. The Tank Topper comes complete with Comfort Shelves, Safety Ramps, a "Bowl in the Hole" Food Dish, Critter Canteen Water Bottle, and a Little Brick House hide-out! A FREE Pet Name Plate is also included to personalize your critter's home. My First Home Tank Topper is available in two cool color combinations.