The Starmark Swing & Fling DuraFoam Fetch Ball, size medium, is perfect for playing with your dog without having to chase after a ball. A durable nylon rope is snuggly attached to a virtually indestructible 2.5 inch foam ball for easy play. The material of the ball is soft and safe for dogs’ mouths. The nylon rope allows you to launch the ball great distances. Because of the ball’s floating ability, you can play with the ball virtually anywhere.