Grommets are a type of eyelet that is used to reinforce holes in fabric or other materials. They are often used in clothing, bags, and other items that are subject to wear and tear. Grommets can be made from a variety of materials, including metal, plastic, and rubber.
Grommets are important because they help to prevent holes from tearing or fraying. They also make it easier to insert cords or other objects through the fabric. Grommets are a relatively inexpensive and easy way to add strength and durability to any item.