10 strands of collagen casings for homemade snack sticks. Total yield of approx 45 lbs. Permeable for smoking. Traditional mahogany color. Each strand will fill approx 4.5 lbs of meat. Aprox 12 feet per strand. Easy to use. Fill with seasoned meat and dry. This is a beef product. Requires the slim 3/8" (10mm) tube for filling this narrow casings. Long shelf life. Save unused casings for up to 2 years.