Keep your pet entertained with these Chuckit! Tennis Ball Dog Toys. Made of high-quality materials, they are designed especially for the game of fetch. These durable dog toys feature an extra-thick rubber core. Bright colors provide improved visibility. Plus, they are helpful for ensuring your canine pal gets the exercise they need. Use these Chuckit! dog balls alone, or with your launcher (sold separately). They are available in your choice of assorted sizes and count sizes.