KONG Grinz characters are all about joy, giggles, and having a great time! Each ball provides a lively bounce and unique tough texture. The raised features of each character create an array of crazy rolling and bouncing movements - with fins, tails, hands, and more - that enhance the excitement of fetching. And let's not forget their classic Grinz smiles, purely for playful amusement! From the Grinz teeth that squeak to entice play, to the unpredictable bounce for endless fun, and their durability for long-lasting enjoyment, each character is full of movement and good times.