This pack of 50 2-1/2 inch black vinyl grommets with a closed back is a practical and versatile solution for various lighting needs. With a closed back design, these grommets ensure a secure fit and prevent any unwanted light leakage. Made from durable black vinyl, they are built to last and can withstand regular use. These grommets are compatible with most 2-1/2 inch lights, making them a convenient choice for both residential and commercial applications. Enhance your lighting setup with these reliable and easy-to-install grommets.