Flemoon [3 Pack] Outdoor Extension Cord Safety Cover with Waterproof Seal, Weatherproof Electrical Connection Box to Protect Outdoor Outlet, Plug, Socket, Christmas Holiday Decoration Light, BlackBrand: Flemoon Color: Black Features: Designed to keep cord connection secure and protected. Outer size for this extension cord cover is 2. 3" x 2. 3" x 7. 1" and its inner size is 2. 0" x 2. 0" x 5. 3". The diameter of entry port is 10mm that perfect to seal 14 16 18 gauge cord, braided cable and flat wire. Compact size and light weight are great to protect outlet plug socket connection hanging in the air. With the 4 corner clips, snap lock lid, and