Features: 1) Produced by the medical paper and the delaminated, tran***rent and plastic film 2) At the front of the pouch, there are two signers whose color will be changed when they are sterilized by EO 3) High pressure and high temperature 4) The user can seal the pouch by heating machine 5) The user can use them according the length of the sterilized object to decide the pouch length 6) Smart and convenience