TruRanch Pork Skin Rolls are healthy, all natural, rawhide free alternative dog chews that feature pork as the #1 ingredient. Made of hydrolyzed collagen peptides, they are an all-natural source of protein, and are highly digestible. They are scientifically-tested to last two times longer than leading rawhide alternatives. From our ranches to our chews, we pledge to stay Tru.