KONG Traxx Refillable Dog Toy KONG Traxx is a robust toy made of rubber of proven KONG quality. Thanks to its rounded shape it is very comfortable for your dog to carry. The high elasticity of the item promises a lot of fun as the toy jumps uncontrollably when thrown. The KONG Traxx has a hole in the middle where you can put the treats that your dog likes the most, in this way the fun will be much more exciting. All features at a glance: Made of resistant natural rubber Colour: black Measurements: 11 / 6 x 4 cm (External / internal Dia. x H) For dogs up to 30 kg in weight Warning: keep an eye on your pet while playing. Check the product periodically, and make sure that it is not defective or deteriorated. If so, replace or discard this product. Otherwise, your pet could swallow some part of the toy and cause possible injury or discomfort.