3 Pcs in a package. Diameter of each ball: 7.5 cm. Works well for training dogs(Hollow ball, not suitable for ferocious dogs or large dogs) Funny squeaking sound: squeaking sound will make your dog more excited. < p>Irregular beat: The ball with a special shape, so there are no rules to roll and bounce, which is difficult to judge where the ball will stop, so the training of hunting dogs . Using food grade rubber to ensure safety for dogs. Soft material can protect dog's teeth while grinding their teeth. The maximum thickness of the pet ball is 0.8cm to ensure that it will not be easily destroyed by dogs. Product Description Protect pets furniture from damage The uneven surface helps dogs grind their teeth and clean their teeth Diameter: 7.5cm Weight: 80g x 3< /p> Material: flexible natural rubber Contents: 3 balls (orange, blue, green)