Just to squeal: Each toy's internal squeaker makes a fun squeaking sound when dogs bite, attracting dogs' attention and keeping them excited and happy. Bouncy Fetch Balls: Made from soft and durable rubber, the balls bounce and roll when thrown on the ground. Dogs will jump and run to chase the ball, great for throwing and fetching games. Safe Rubber Toy: The toys are made from non-toxic natural rubber that is flexible and safe for puppies to chew and play. Rubber toys are easy to clean, just rinse with water. Teeth Cleaning Tips: The small bumps on the surface of the squeaky balls help clean teeth, promote dental health and freshen breath while teething. Medium Pet Balls: Contains 4 different sports balls (basketball, football, volleyball and rugby) with a diameter of approximately 7 cm.