MAKE CRATE TRAINING EASIER: Specially designed for crate training to encourage dog licking and biting to relieve stress, so your dog will no longer be afraid to stay in the crate and die time to enjoy. Reasonable snap-line design, the dog toy can be installed easily, and also fits most crates on the market, help you solve the problem of dog crate training perfectly. UPGRADED DOUBLE-SIDED DESIGN: Widening and lengthening the Groove to hold enough food like peanut butter, meat sauce or any other sticky food your dogs like. Besides, the head of the training aid has a hidden texture design, which can be placed horizontally and vertically and attached to the cage, perfect for most cages. CLEAN DOG’S TONGUE, MAINTAIN ORAL HEALTH: Unique small round particle design in the center of the dog training toy can help clean your pet’s tongue, like scraping off food fragments and odor-causing fragments, keep mouth gums healthy, and also reduce eating speed to improve digestion. RELEASE STRESS DOGS