Finally, an egg shaped dog ball smaller than an eGGe dog ball! Jolly Pet makes Jolly Eggs balls in the USA. These egg shaped balls really get dogs moving and now little dogs can exercise too! The shape of the egg ball makes it shoot away when your dog tries to grab it — then the chase is on. Herding breed dogs just love to chase these erratic moving egg dog toys. Terriers love them too…now that there are 8 inch Jolly Eggs our little dog friends can have chasing fun too. These balls are pretty tough, nearly indestructible, because they are made of hard plastic, the same plastic as the Push-n-Play Jolly Balls, and because they are so hard for your dog to grab and chew. We recommend that you get a big enough egg dog ball so that your dog cannot grab hold of it.