duvoplus vine wood is a 100% pure and natural chew snack without artificial additives. It is made from the wood remnants from the annual vine-pruning and will therefore appeal to anyone who is looking for eco-friendly chew alternatives. Chewing helps to care for your pet's teeth. The playful shape and rough surface stimulate your dog's natural chewing instinct. Hours of chewing fun guaranteed! Always keep an eye on your dog whilst he/she is chewing.