You can use our "Knut" rope knot for your dog to play, pull and throw. Since the toy is made of natural cotton rope, it is sustainable and free of any harmful substances. Please do not leave your dog alone with the rope knot, as it is not a chewable article. Every product is handcrafted with a lot of love and care. Small deviations are possible. Dimensions: Small: total length 20cm, knot diameter 6cm Large: total length 30cm, knot diameter 8cm Material: Cotton rope braided and twisted Care: Washable at 30 degrees