Coils features:Nylon grommets have a lot of important uses and purposes. In manufacturing or production/repair and other related industries, grommets are used to cover the rough and edges of a hole in a metal junction. This is designed to protect material as it is passed through. FeaturesColor: BlackMaterial: NylonNylon grommets are commonly used to protect or cover holes and to protect cables or wires from corners or edges. Nylon grommets are also important parts in automotive applications. Widely used in electrified railway and power grid wire insulation protection, cable snap bushing insulated protection reliable The nylon construction grommets are non-flammable, weather-resistant, also less affected by the negative effects of UV light and ozone, high heat resistance, more durable and tear-resistantIt does not dry up or crack and come lose easily, grommets are more resistant to oil, phosphoric, hydrochloric, sulfuric and Saltpeter acid.