One Size. Duraforce® toys are made with durability in mind! Each toy is engineered with plastic-coated polyester fibers that are woven into a durable, thick mat. The edges are protected by industrial grade webbing and sewn multiple times for added reinforcement. They float and they’re machine washable. With vibrant colors and a variety of shapes and sizes, Duraforce® dog toys are sure to provide hours and hours of canine fun! Duraforce® toys are built to withstand rigorous interactive play, not aggressive chewing. We use quality, durable materials, but this product is still a “soft” plush dog toy that can be damaged from chewing. Care for your dog like you would your child. Do not allow your pet to swallow any part of ANY brand of dog toy.