Colgn chews are made from the collagen rich lowest layer of Water Buffalo Cheek skin. Water Buffalo Cheek is recognized as a superior alternative to cow rawhide. It dries super hard and not absorb moisture during the chewing process. This means it does not get soft. Dogs cannot chew off a hunk of it, avoiding potential intestinal blockage issues. We have traditional sticks in both 6" and 12". These are similar diameter to a premium Bully Stick, less expensive, and much longer lasting. We also have a pressed bone and a ring for the aggressive chewers, also very affordable. Colgn chews are available pouched or with a band.