The thick, natural rubber of these Kong Dental Toys provides dogs with a real chewing workout. Revolutionary design makes toy bounce unpredictably in every direction. The Original (Red) Series of Kong Dental Toys helps clean teeth and gums. The toys are made of puncture-resistant rubber for unmatched strength, durability, and bounce. They are non-splintering, non-abrasive, and do not get sharp when chewed. Revolutionary dome shape makes toy bounce unpredictably in every direction. The dome is hollow in the middle so it can be stuffed with peanut butter or treats for even more challenging fun. Try filling your Kong with Ice Cubes, your pet will spend hours trying to get them out.  We buy in bulk, so no packaging will come with this product.  Encluded is a Kong Users Guide.