KADTC 4-Level Extra-Large Dog Puzzle Feeder, Push-to-Release Treat DispenserA puzzle toy integrates 4 levels of difficulty,large food capacity This pet puzzle toy integrated 4 levels of difficulty, a game console designed for dogs, but also a slow feeding plate for dogs. This product has a many ways to use. It can be used by dogs who have never carried out intellectual training, or who only have the primary puzzle exercise. It's a super playful toy, a puzzle toy that can develop the dog's independent thinking! How to teach