Avalon Plug Covers help stop damage from dirt and debris for open RJ45 ports and unused plugs. These RJ45 covers protect your valuable ports and cables. Made from flexible PVC, these covers attach easily and stay in place with a snug friction fit. Jack covers feature a low profile knob making for easy removal when the port in needed again. Plug covers also protect the delicate locking tab on modular plugs. Packaged in bags of 100 pieces and shipped from a vast stock for large projects.