The GROTE PVC open-back rectangular grommet for 15 series lights is crafted from durable PVC material, ensuring it offers long-term resistance to wear and tear. Its open-back design simplifies both light installation and maintenance procedures, while the rectangular shape provides a snug fit around lights for effective sealing. The black color offers a sleek appearance that complements most vehicle finishes. This design prevents unwanted light movement, thus maintaining optimal performance throughout its usage.