Feeling a draft from your electrical outlets? These simple foam gaskets are an easy, cheap fix to save energy and improve comfort in your home, office, or hotel. This pack comes with 50 pieces, so you can seal up a whole house. They're made from 3mm thick, non-flammable EVA foam that's weatherproof and resilient. The gaskets are about 2.5 x 4.2 inches (63 x 107 mm) and come pre-perforated in three common styles (for different outlet and switch configurations) – you just pop out the center pieces you need. Installation is a breeze: turn off the power, unscrew your wall plate, stick the gasket on the back, and screw the plate back on. They create a tight seal that stops air leaks, helping to keep conditioned air in and drafts out. A fantastic little DIY upgrade for better insulation and lower energy bills. The black color is discreet. A very practical purchase for any homeowner or renter.