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