Hydrocolloid wafer with non-woven border,EVOH, with non-woven for one side, carbon filter, velcro cl 1. 10pcs/PE bag 2.10pcs/box Self-adhesive: Advanced medical hydrocolloid skin barrier has great adhesive that will keep the ostomy bag stays in place for days. Easy to remove without glue residual remained on skin Skin Friendly: Soft non-woven fabric pouch covering and breathable holes punched PE film pouch covering for your choice. Actually reduced friction and noises Dural Protection: Extra non-woven sealing tape around the wafer provides double security, allow a longer wear time without leakage Easy Apply: There is a stoma measuring guide, measure your stoma and find your size on the plates, cut it to the proper size and take the paper backing off, apply against the clean skinosure