Air Squeaker Bone Air Kong Squeaker BoneDurable high quality Squeaker BoneNon abrasive material that will not wear down dogs teethAlso features a great squeak that your dog will love100 Pure Tennis Fetch ToyNonabrasive Nontoxic Felt CoverHeavy DutyErratic BounceHigh FloatingAll Squeaker units are hidden and covered by the tennis ball fabric