Sporn® Durable Marrow™ Chews are the only chewable nylon bones with "Jerky Flavour Down the Middle"! Perfect for power chewers, the SPORN® Ultimate Marrow™ Chew Bone has multiple textures, ridges and zig-zags which help remove tartar from the dog's teeth. Its strong, jerky flavoured centre will keep your dog coming back for more. Unlike traditional rawhide bones, the SPORN® durable nylon Marrow™ Chews will last! Composition: Nylon, Natural Rubber and TPR. Dimensions: 6.5" length, 2.75" width, 2" depth. Ideal for Medium-Large dog breeds. Please monitor your dog for safe chewing at all times.