Our JW® Crackle Heads® Crackle Ball is great for toss and games of fetch. This long-lasting dog toy is fashioned with a tough outer rubber layer that provides a protective wall. The outer layer has holes so that the crunchy sound is easily heard by a dog. The crunchy ball inside is made with recyclable plastic bottle material. Provides hours of enticing interactive playtime for a dog. Size: 10cm in diameter