1. clean stoma and the surrounding skin.
2. measure stoma with measuring guide before cutting out the hole and Leave only 1/8" to 1/16" between the measuring guide and the stoma.
3. Remove paper backing from barrier and apply the entire appliance over the stoma. Make sure the stoma is in the center of the hole. pressing it all around to make sure it stick firmly.
4. keep locking ring unlock, snap the pouch onto the barrier, should feel the tray "click" into place.
5. remove the bag: press the lug to unlock the locking ring, lift the bag from bottom to up while pulling it away from barrier. If you choose open type bag, please close it with the clip before sticking.