This is the best idea and best thing I bought for my little hammy! Previously I had the oval-shaped covered potty with the covering being open at either end, this meant my little hamster had a habit of placing himself with his little posterior hanging outside of the potty and hence missing the enclosed potty litter. Once I received (very quickly dispatched to me) the corner potty, no more mishaps! - all little 'transactions of business' are done within the potty and onto the litter. Wish I had had the potty from the start but had no idea they existed - an excellent find and purchase!