Every dog enjoys playing with his owner. To vary activities it is better to use several different toys. This Squeezing Rubber Dog Ball is intended for basic training and playing. It has a dotted surface that allows to massage your pet's gums. But note, it is not for long chewing.
This Crazy Dog Ball is made of dog-friendly rubber. It is absolutely safe for your German-Shepherd, even if he chews it. The squeaker is placed deeply inside the ball, so your pet probably won't be able to get it out.
But still you should be attentive, because there is nothing indestructible in the world. Do not leave your dog unsupervised for a long time.
Take a look at rubber ball in 3D