24" long. Bundle of 10. A mahogany colored synthetic casing. The fiber in these casings runs lengthwise which makes them strong so they can be stuffed tighter without breaking. No smoking is needed as the mahogany color simulates the color of smoke. Need not be refrigerated. Soak at least 30 minutes in tap water before using. Not edible. Stuffing capacity: approx. 8 lbs.  Flat Width 172mm.