The range of Extra-Tuff Monster Chews are extra strong for powerful chewers. It has all the features of the original monster chews and is made of durable material and can satisfy your dogs instinct to hunt and chase. Also use as a great fetch toy to develop the bond between you and your animal and help them reduce stress for dogs who suffer from separation anxiety or from other behavioural problems. Available in 3 different sizes to suit all breeds.