KONG Stufferz Chicken Dog Treat - KONG Stufferz hollow center is ideal for filling with peanut butter or KONG Easy Treat. Works great as an individual treat or stuffed into KONG Classic rubber shaped toy to extend the instinct-satisfying chewing challenge. Multiple reward layers satisfy chewing needs and extend engagement. These healthy, premium chewy treats are made in the USA with an irresistible chicken flavor. Stuff and freeze to increase difficulty. Fillable center rewards chewing instincts Premium chew designed to extend playtime Freshens breath and cleans teeth Made in USA Available in Medium/Large and Small sizes Freeze to extend engagement Grain-free, easily digestible formula