Robust and chew-resistant toy made of natural rubber. The ostrich egg bounces unpredictably, which is incredibly fun for the dog (quite annoying for you).
This toy also comes with a rope to help you throw further.
Reference
Small: An adult Cocker Spaniel is too large for this size.
Medium: Suitable for puppies and adult dogs such as Springers, Labradors and smaller Malinois
Large: Suitable for all adult service dog breeds