Balls Feeding Food Dog Voice Sound Black Ball New Arrival Pets Non-toxic Bite Resistant Toy Balls 3 Sizes Training Chewing Teeth (L(12cm)) Size:L-12cm,M-10cm,S-8cm This fantastic ball is the great toy choice for your pet dog and cat, with footprint and bone pattern on it Material:Plastic,Condition: 100% brand new Put some of your pet's favorite snack inside and the dog will be attracted It's like a duck quacking when the ball is in movement, very funny