We now have 2 very energetic yellow Labs - one 3 yrs old and one 6 months, and they are both agressive chewers (everything is food to a Lab!), and these Hydro Plane Floating Throw Toys get almost use in our house! We have both sizes, and they are great fun in the water and on snow - and it’s shape allows a dog to carry it in its mouth, but is still able to see through the center. These are the most rugged frisbees we have seen - and our Labs love to tug these from each other and they have held up to years of play!