A Divider Panel adds versatility to your pet home and saves you money by allowing you to adjust the size as your puppy grows. In most cases, you should buy a MIDWEST Home large enough for your dog when he grows up. However, if the home is too big when your pup is small, he may eliminate in one corner, then go to another corner to sleep. This helps cut housebreaking time in half! MIDWEST Divider Panels are available to solve this problem.