This ostomy system is a comprehensive product line with latest skin barrier technologies. The plastic coupling ring allows the pouch and skin barrier to snap together for audible security. Only this ostomy system is available with ConvaTec Moldable Technology skin barriers. These barriers hug the individual contours of your stoma to allow for a secure, personalized fit without the need for scissors.This drainable pouch is composed of a lightweight plastic material that is odor-proof and quiet under clothing.