UNIQUE DESIGN: Roller design, no battery required. This interactive dog toy moves back and forth under external force, and when the toy body is tilted, the dog's treats will fall out of the holes. Dogs will think, learn and eat during play, which will be a great process SAFE NON-TOXIC MATERIAL: Made of environmentally friendly ABS plastic, very durable, not easy to damage, non-toxic, safe to play, suitable for all sizes of dogs and cats. PERFECT GIFT FOR YOUR DOG: This dog educational toy can improve your dog's intelligence, slow down eating, maintain a healthy diet and manage your dog's weight properly, while helping to relieve stress, depression and separation anxiety. INDOOR & OUTDOOR FUN: Light weight easy to carry. Suitable for small/medium/large dogs and cats that do not chew excessively, great for use indoor and outdoor flat floors. GOOD TO USE: Keep pet food all in a container to prevent pet food from being scattered all over the place and save the effort of cleaning floors, reduce mass. Why does your dog need it? This dog educational toy can improve your dog's intelligence, slow down eating, maintain a healthy diet and manage your dog's weight reasonably. Also acts as a good companion and helps relieve stress, depression and separation anxiety. Effectively enhance the relationship between pets and you, and let your pets enjoy leisure time with you more! Color: lake blue Size: 13.8*8*11.1cm Weight: 246g Package includes: 1pc* dog toy