This is a one-piece ostomy system with a free-cut design, compatible with stoma diameters of 29-44mm. - Model Name: Cellcare 1-TDc - Product Type: One-piece ostomy system - Effective Stoma Diameter: 29-44mm - Model Number: 20141 - Free Cut Type: 45 Free - Expiration Date: 2030/05 This is a convex type designed for those with abdominal wrinkles or a stoma that is not flush with the skin, making it prone to leakage or pouch detachment. Due to shipping costs, the product will be shipped without the box, allowing us to offer it at a lower price.