If it s not, your puppy won't want to play with it. Ease of cleaning . These are not only great chew toys, but are also great retrieve toys as well. In my opinoin, they are two of the best puppy toys on the market. Both the solid and hollow thick rubber balls can be rolled across floor for puppy to chase and chew.
Tennis balls are perfect for teaching medium to large sized puppies to retrieve.
Should this happen with your puppy, remove any pieces which can be swallowed immediately. Fill these toys with kibble or your puppy's favorite treats and watch the fun begin. Mix well and let sit for 1 hour. Stuff mixture into beef marrow bone. Make sure the beef marrow bone is big enough that it can't be swallowed, and that bone fragments are not eaten.