Snack Stick casings Choose Your Quantity 21 mm Collagen Casings for making 25 lbs of homemade snack sticks each 1 - $23.75 2 - $44.75 3 - $63.75 4 - $79.75 Five strands. Each strand will hold 5 lbs of meat. 21 mm diameter. Filled strand is approx 25' long. Fully edible and much easier to use than hog or sheep casings. Permeable to allow smoke to penetrate when smoking. Great for fresh snack sausage that is going straight to the smoker or in the freezer. Collagen casings are natural, very easy and quick to use. No preparation needed. Just load on your stuffing tube, tie off the end and start stuffing. (3/8"or 1/2" diameter tube needed for this size casings). Store unused casings for up to two years. We Ship FAST! Most orders ship within 8 business hours. View our complete store at https://www.ebay.com/str/butcherbaker