Barkworthies Collagen Stick Dipped in Peanut Butter Dog Treat 6inBarkworthies Collagen Sticks are made with 95% collagen because the first ingredient in your dogs treat should be one that supports their health inside and out. Collagen helps promote mobility and flexibility, supports healthy skin and a shiny coat, and may ease joint pain and stiffness. These long lasting chews are perfect for keeping your pup engaged and satisfied for hours. Available in a crave worthy peanut butter flavor, theyre ideally sized for