Hero Outer Armor dog toys are made using a special multi-layered manufacturing process that brings together different materials to create a new standard in durable play. Our proprietary process brings together 3 layers of TPR with a layer of durable canvas, creating an extremely durable toy with a unique look and feel that dogs and their owners will love! They float and squeak as well! Available in 2 sizes ? large and small, and 2 colors.