The KONG Marathon treat provides a mentally occupying chew solution. Ideally sized to fit within KONG Classic rubber toys, this convenient, mess free treat is packed full of fun. As a starter, flavoured nubs ignite natural chewing instincts, then the robust exterior continues the engagement, finally the edible prongs entice foraging instincts as they drop into the toy once the exterior is chewed. KONG Marathon is natural, grain-free and proudly made in the USA. Placing the treat on the KONG is easy, just simply push and twist the treat to lock it on the KONG and unleash the treating extravaganza. Mentally occupying chew solution Convenient, treat filled fun that is mess free Flavour nubs ignite chewing behaviour Treat prongs drop in and entice foraging instincts Natural, grain-free recipe.