Four Paws Rough and Rugged Pimple Tower Dog Chew Toy Virtually indestructible Part of a complete line of unique and traditional style toys made with the highest grade of rubber and filled with unique polymers to give extra bounce. From the home of quality pet products Pimple Tower, X-Large Rough and Rugged toys are made with the highest grade of rubber and are virtually indestructible Rough and Rugged toys are filled with unique polymers to give them extra bounce The Pimple Tower is part of a complete line of unique and traditional style toys