We have had many squeaker dog toys over the years, but the ones that have lasted the longest are the iSqueak balls by JW Pet. The iSqueak ball can be found on Amazon or in many brick and mortar pet stores. They are made from 100% natural rubber with no toxic ingredients. We have bought them for our dogs for over seven years now. Our one dog likes to chew on any toy that we buy. The iSqueak ball holds up well. We can usually get a year or longer out of each ball. They are used only outside to play ball, so they take a beating by the sun, too. The squeaker is probably the first to go if something breaks. Most of the time the balls just get worn out and the squeaker still works fine. We love them and so do our dogs. They are great for playing catch or for just entertaining your dog with a squeaker toy.