X ray. Rope inside. Rugged, heavy construction. Designed to last. Tug or toss. Squeaks too. Not just another toy - a toy that is Tuff Enuff. Durable. Great for interactive play with your pet. Want to chase or catch? Designed with soft material so it's easy on your dog's mouth. Want a dip in the pool? Most Tuff Enuff toys float! Durable but not indestructible, a great toy for dogs who have attitude. Leaders of the pack! Tuff Enuff comes in a multitude of designs and colors. All new material, surface wash only.