The award-winning West Paw Qwizl Toy was brilliantly designed to extend the life of expensive dog treats while keeping dogs busy. The side openings release scent and taste while the continuous interior hole allows treats to extend out. Flexible ridges grip multiple sizes of treats. One of our toughest dog toys, Qwizl is also fun to toss, fetch, and chew even after the treats are gone. Curved shape makes toy easy for dogs to hold in place with paws. Built for tough chewers.