The PetSafe Egg-cersizer Cat Toy makes playtime more fun and helps your cat lose weight. You can fill this cat toy with treats or your cat's entire meal. You can open 1, 2, or 3 of the dispensing holes to customize how fast the treats or dry food come out. This toy will decrease the number of openings to increase the challenge over time. The cat food pops out of the openings as your cat plays with the toy. This cat toy is a great way to slow down cats who eat too fast, encourage your cat to work for each meal, and reward your cat for exercising. The PetSafe brand is here to help you and your pet live happy together.