Large, Invincible Triple Link Solid Rubber Chains With 1, 2, Or 3 Rings To Entice Your Dog To Tug, Chew & Play For Hours, Stands Up To The Roughest Play & Toughest Chewers, No Glue Construction Stands Up To The Abuse, Easy To Hold On To While Your Dog Tugs, Rids Dogs Teeth Of Plaque As He Romps & Plays.