Great product, worth the money. I tried the cheaper petsmart discs and than upgraded to the Kong disc. The Kong lasted for about a month then ripped. The first West Paw Zisc lasted for double that. My boxer goes to the dog park 3-4 times a week and the Zisc always goes with us. I did have to return the first one when it finally ripped but it was an easy exchange and the second Zisc is holding up great. Even if this one rips I will buy another, they are that great. I tell as many people possible about this product. 100% satisfied customer.