We have a 1 year old Springer Spaniel and she had wrecked this within a day. As per the Interpet Chomper Mongoose Missile, this was chewed into little pieces in a couple of hours. Would not recommend for any strong chewers. The fault seems to be that it is hollow with a hole in the top for treats. This allowed her to get her teeth around the rubber. We have the ball from the same company and it is still going strong after 4 months. This is the only reason it gets an extra star.