3 pcs in a package. Diameter of each ball: 7.5 cm. Works well to train dogs (hollow ball, is not suitable for fierce dogs or big dogs) His funny grinding: his grinding his dog will make your dog more excited. Irregular beat: The ball with a special shape, so there are no rules for rolling and bouncing, which is difficult to judge where the ball will stop, so that the training of hunting dogs. The use of food grade rubber to ensure safety for dogs. Flexible material can protect the dog’s teeth while grinding their teeth. The maximum thickness of the pet ball is 0.8 cm to make sure it will not easily be destroyed by dogs. If there are problems with our product, please Contact us and we will give you a satisfactory answer. Protect the furniture against damage The uneven surface helps dogs to grind teeth and clean their teeth Diameter: 8 cm Weight: 80g * 3 Material: Flexible natural rubber Content: 3 balls (orange, blue, green)