DuraForce dog toys is a durable line of toys perfectly suitable for your more aggressive players. The toys multiple layers are woven togethers with thick polyester fibers for durability and the edges are covered with industrial grade webbing to protect them and create strength. Each toy is then sewn again to ensure the toys stay together even in the toughest interactive play. The squeakers are sewn into material pockets inside the toy for protection. DuraForce Triangle Ring is rated 9 on the tough scale, floats, and is machine washable.