This thing is great. Even with my shoulder problems I can now throw far enough to make to "playing" worthwhile. The fuzzy tennis ball didn't last 5 minutes but I also bought the rubber glow ball that fits the Chuckit. The glow ball has outlasted every single other toy.... and my doberman goes through toys like kibble. literally. The glow ball works awesome, hold it under a light for a minute and you can see it fly through the air in the dark for about half an hour. Chuckit plus Glow Ball - I can throw it and it's lasts!