Living World Nibblers assorted shaped Wood Chews are specially designed to help improve your small pet?s dental health. They are also fun to chew on and are an excellent boredom buster. Key Features : 12 assorted shaped wood chews Helps improve small pet's dental health Boredom buster Living World Nibblers assorted shaped Wood Chews are specially designed to help improve your small pet's dental health. They are also fun to chew on and are an excellent boredom buster. Available in a variety of shapes, sizes, and colours, Nibblers are made of a range all-natural materials such as wood, loofah, willow, corn husk and raffia. All Nibblers are colour-finished using non-toxic food colorants. Some Nibblers come with a chrome-plated steel rod attachment that can be either hung or fastened to the cage.