KONG Duratreat Bone Dog Toy LargeKONG Duratreat is made with KONG crafted K120 that provides both durability and flexibility that combine to satisfy a dogs natural chewing instincts. Add to that the ability to stuff with treats and kibble and this toy is sure to engage and delight while providing a healthy dose of mental stimulation along the way. The Duratreat bone wobbles adding to the puzzle challenge. Stuff kibble loosely into the pockets for an easy challenge or tighter to