WACKYwalk'r has been creating premium patented pet products since 2004. Most recently we "reinvented" the fetch toy. Our WUNDERball is 100% made by hand in North America and is so much more than just a "ball". They Clean Teeth, Bounce Unpredictably, Float, Roll Farther and we GUARANTEE them to be INDESTRUCTIBLE. WUNDERballs are made from the excess material from our award winning "no-pull" leashes - The WACKYwalk'r. Using our excess material keeps costs down, but also helps us do our part in becoming a more eco-conscience, forward thinking, sustainable company. Available in 4 sizes, they are safe for Pups and the Planet.