The product is a set of 4 boxes containing 10 Hollister Adapt Convex Barrier Rings each, designed for ostomy use. The barrier rings have an opening diameter of 20mm and are specifically made by the brand Hollister. These rings provide a secure and comfortable fit for stoma pouches, helping to prevent leaks and skin irritation for people with ostomies. Ideal for daily living and medical purposes, these barrier rings offer a reliable solution for individuals looking to manage their ostomy needs effectively.