The Best Fetch Ball for Dogs is WUNDERBALL. Unpredictable Bouncing Action Keeps Dogs Entertained and Engaged. Available in 4 Sizes and lots of fun colors, it's the Best Fetch Toy for puppies and full-grown dogs of any breed or size. Check out the new color SWIRL available now. Fetch has never been this fun thanks to the Amazing New WUNDERBALL..Made by Hand. Approved by Dogs.