Our hog casings specification follows: 1.Color: white, milk white , light pink . 2. Calibers: 28/30 30/32 32/34 34/36 36/38 38/40 40/42 42/44 44/46 46/+ Our sheep casings specification follows: 1.Color: white, milk white , light pink . 2. Calibers: 15/17 16/18 17/19 18/20 19/21 20/22 22/24 24/26and so on .All of the calibers are reasonable . 3. Standards: aa , a ab and b . 4. The packing in plastic cask . 500hanks/cask .Or according to your special requests. 5. The casings are approved by eu and have passed haccp system . 6.Length :90m 88m 85m 80m 75m and so on all according to your special requests . 150hanks or 500 hanks/cask