Jolly Pets Inc. Romp-n-Roll Dark Blue 6''. If your dog likes to retrieve at the lake, or play with other dogs, this ball is a "must have." The Romp-n-Roll by Jolly Pets features a ball made from Jolly Pet's signature JollyFlex material- an innovative, durable, non-toxic material that can be punctured without deflating and bounces during play. Even if your dog puts a hole in it, it will still keep its shape. It is designed to be kicked, tugged, carried and launched. The Easy Grip rope can be pulled back and forth through the dog ball, but never comes out. Ideal for games of chase, tug-of war and water retrieval (it floats!), the Romp-N-Roll is sure to provide hours of outdoor fun for your dog. Available in three sizes: Small (4.5 inches) for dogs under 20 lbs., Medium (6 Inches) for dogs 20-60 lbs., and Large (8 inches) for dogs over 60 lbs. Jolly Pets is proud to manufacture the Romp-n-Roll Dog ball right here in the USA, and supports organizations throughout the nation that provide toys to shelter dogs.