"This stylish pet potty is great if you have a large cage for your small animal but if you have one like we do, one of the down under series or the critter trail you may want another option because it is rather roomy and takes up a ton of space in the cage. In fact, in the down under it will not fit under the platform. On the up side, this is a great way to reduce waste to one area of the cage and it is fairly convenient for a busy family because it takes the cleaning time down a few notches. If you like this idea and have the space; this is the one for you. Just be patient with the litter training, it may take a few days. My best advice is to find the corner of your hammy's (or other animal) cage that they prefer and take a soiled piece of bedding and place it in the potty with the litter.After a few days they will catch on and prefer to use the potty instead of littering the cage with waste. Plus, kids really get a kick out of this! It really is fun to watch & My toddler says his hammy Poncho uses the potty like a big boy!"