Skywalker Signature Series Single Feed-Thru Bushing, Black, qty100 These feed-through bushings seal wall openings and protect cables from harm and abrasion damage Weatherproof & varmit-proof when used in conjunction with a silicone seal (sealant sold separately) Crafted out of ABS plastic, UV-Stabilized construction & Available in Black and White (sold separately) Durable, must-have solution for running low-voltage cables through walls (100) Bushings included for a variety of installation needs | Requires 1/2" pre-drilled hole for installation