This combination of TPR and Durafoam results in a lightweight, stylish product. Both TPR and Durafoam are known for their high bounce and springy nature. Foaber have employed this into a distinctive and bold design to give the Foaber Atom a highly erratic bounce resulting an unpredictable and stimulating game of fetch. Thick TPR walls ensure this product is suitable for powerful jaws of any size whilst the outer bumps massage and soothe gums during play.