Make Fetch Happen? on land and in water with Chuckit!? Ampibious Fetch Balls! Great for water loving canines, Amphibious Fetch Balls are unsinkable and float high on water, making them the perfect summer time dog fetch toy. Bright colors make them easy to find in water and on land. Made from lightweight, yet durable materials the Amphibious Fetch Balls are gentle on your dog's mouth and won't pop when you dog fetches them. Measuring 2.5 long by 2.5 wide, Amphibous Fetch Balls are launcher compatible with medium Chuckit! Launchers. Great for pools, ponds, lakes, and creeks get outside and enjoy an interactive game of fetch with your water loving canine.