By Hamilton Products: The Strongest Adjustable Collar For Your Growing Dog. Unique, Adjustable Patent Pending Design Pulls Stress Away From The Easy To Use Quick Release Buckle And Transfers It To Nearly Indestructable Premium Nylon Webbing. (Not Intended Search_Phrases: Pet Collar,Pet Lead,Pet Harness,Pet Muzzles,Pet Harness,Dog,Cat,Pet Products,Hamilton Pet Company,Hamilton 7-12In X Small Adjustable Dog Collar Berry