SlimLine 2243 Flat Plug Extension Cord, 3-Wire, Black, 8-Foot. Slimline household extension cords are here to Solve problems. They have a space-saving design with safety Solutions to daily problems. Never trip over a cord sticking out straight from a wall. Now your cord will hug the wall nicely. It allows the user to safely place furniture against the baseboard. The plug is angled so it does not block the other outlet. recommended for clocks, lamps, holiday lighting, and other indoor uses. It is UL listed.