our hog casings instruction: 1.color:white, milk white ,light pink . 2.caibers:28/30 30/32 32/34 34/36 36/38 38/40 40/42 42/44 44+ 40+ and so on .all of the calibers are reasonable . 3.standards:AA ,A AB and B . 4.the packing in plastic cask . 150hanks/cask .or according to your special requests. 5.the casings are approved by EU and have passed HACCP systerm . 6.length :90m 88m 85m 80m 75m and so on all according to your special requests . 7.we have our own factory and good resources . that makes us a stable offering and always a better price. if you want get more details please contact us with e-mail ,MSN or phones. any reply will be aprreciated.