Pet KONG Extreme Dog Toy, Black. (Medium). Durable, Strong, Toy, Indestructible, Rubber, Chew Supply Store/Shop Stuff with KONG Treats and Ziggies Recommended for power chewers Keeps dogs busy and helps deter misbehavior Made in the USA of nontoxic, extremely durable natural rubber Measures approximately 4-inch long. for dogs under 20-pound