Spot Play Strong Rubber Bone, 4.5 in. is designed for dogs that are aggressive chewers and tend to destroy toys quickly. This virtually indestructible bone features a hollow center that can be filled with treats, peanut butter, or cheese, making playtime more engaging and interactive. Made from a durable yet gentle material, it supports your dog's natural chewing behavior while helping to keep their teeth clean. At 4.5 inches, it is the size for long-lasting fun and enrichment. Model Number: