Red Barn Collagen Sticks are all-natural chews for dogs made of collagen obtained from Beef Hide, packed with 75% protein, as well as Chondroitin & Glucosamine to support joint health. The chews are prepared naturally, cutting and sterilizing the product to then have them pressed and rolled. Grain-free, gluten-free and uses no artificial flavours and preservatives. Red Barn products are ideal for mentally stimulating your dog's need to chew.