We are a proud dealer for this Go-Frrr Slingshot-Action Fetch Ball. This fetch ball kit is designed for giving your dog training and exercise. You can launch the special fetch ball from 15' to 150'. You should exercise your dog, not your arm! Forget about throwing the ball for your dog. Get this Go-Frrr Fetch Ball and your dog will absolutely love it. You can choose the kit with 2 Medium Fetch Balls or 2 Large Fetch Balls. We also sell extra Go-Frrr Fetch Ball with 3 different sizes.