Wocloer 12 Pcs Stainless Steel Electrical Box Knockout Plugs - Fits 1/2" Conduit & Multi-Sizes, Easy Install Removable Seals forClosure Unused Electric Box Outlets - Dust & Waterproof

["Complete Size Coverage: Package includes 12 pieces of 1/2\" premium stainless steel knockout seals. Designed to fit standard electrical box openings, providing ideal solutions for both residential and commercial installations","Premium Stainless Steel: Made from high-grade stainless steel for superior strength and durability. Performs reliably in wet conditions and extreme temperatures, ideal for workshop, marine and outdoor applications","Secure Sealing Performance: Creates a weatherproof seal around unused knockouts to block dust, water, and foreign objects from entering electrical boxes, protecting wiring and reducing short-circuit risks","Tool-Free Installation: Simple screw-on or snap-in design allows quick installation/removal without damaging the box; reusable for future adjustments or maintenance","Wide Applications: Ideal for electricians, HVAC systems, and industrial equipment protection—seals junction boxes, control panels, and pipe conduits while complying with safety standards"]