Virtually indestructable Ball Puncture proof! Great for outdoor/water use One of the toughest toys on the market 20cm x 20cm x 20cm The Boomer Ball is a virtually indestructible toy, ideal for ball-obsessed toy destroying Breeds. Company of Animals Dog Boomer Ball is the perfect durable, hard wearing toy. The Boomer Ball is virtually indestructible & is ideal for those ball-obsessed, toy destroyers; the larger-than-life characters who love to chase & conquer. The Boomer Ball is not intended for your dog to carry. The size selected should be larger than your dogs maximum jaw gape. Typical Breed 4&0&0 for Dachshund, Jack Russell, Yorkshire Terrier, Westie. 6&0&0 for Border Collie, Bulldog, Scottie, Springer, Basset.8&0&0 for Boxer, Dobermann, GSD, Labrador, Golden Retriever.10&0&0 for Bloodhound, Bull Mastiff, Great Dane, Rottweiler.