The ultimate fetch toy! It bounces unpredictably for active play and has space to hold chews or your pup's favorite spread for a post-play treat. Freeze the Twist Toss with your pup's favorite spread for a longer-lasting snack. Top-rack dishwasher safe and made of natural, pet-safe rubber. Materials: Natural Rubber BPA Free and Phthalate Free Specs: Standard: 2.7" x 2.7" x 2.7", 0.3 lbs Small: 2" x 2" x 2", 0.1 lbs