Coloplast Alterna 1973 (60MM) Long-wear light Base Plates are an assortment of materials designed for the security and protection of people with Colostomy. It has Soft Absorbent Backing that enhances comfort. Alterna’s spiral adhesive around the stoma provides secure adherence to your skin. Features like Anti-Reflux Valve and secure outlet closure with simple Locking Connector give extra protection by attaching Night Drainage Bag.