Feed Through Bushing(White, Clear and Black colour and the different sizes, style as customers'request) used for the Coaxial Cable & Wire installation through a wall safely. These durable and Stabilized products maded from ABS, PP, Nylon materials. Plastic Wall Bushings are used for weather-sealing a cable entry through a wall. Best if used with silicone to prevent moisture penetration in the cable & wire industry.