Durable, thick, 100% natural, puncture-resistant Large Cool Kong rubber toys give dogs a satisfying chewing workout. Toys bounce unpredictably when thrown and float on water to provide plenty of fun anywhere dogs like to play. Attached nylon throw rope allows Cool Kongs to be used for tugging or to be tossed longer distances. Great for retriever training, both in water and in the open field. Like all Kong toys, chewing and playing helps clean teeth and gums.