Goughnuts K9 Cup Green/Red The GoughNut K9 Kup was developed to hold food/treats and then be easily cleaned The product is a tube shape with one side closed off This creates a length of tube where your dog will try to reach the bottom but will have a difficult time doing so The product weighs 15 ounces, holds approximately 8 oz, and should be used for medium and large breed dogs The product floats, remains flexible in a freezer, bounces and is very tough using the same GoughNuts natural rubber