Adequate Quantity Choose Suitable Size: the outlet insulators and draft sealers include different sizes, respectively 63 x 107 mm/ 2.48 x 4.21 inches, 108 x 109 mm/ 4.25 x 4.29 inches and 108 x 157 mm/ 4.25 x 6.18 inches, suiting your varying sockets; Please check the size details of your switches and sockets before purchasing; Improve Efficiency: the outlet insulation pads are about 3.0 mm/ 0.12 inch thick, which can tightly seal ventilation opening so that cold or warm air does not escape through the outlet box easily, helping to save your air conditioning and leave a comfortable living environment Product Features: Multiple Insulation to Meet Your Needs: there are various kinds of outlet sealers to meet most switch types, which can be applied for domestic and commercial use. You can choose the right one for your sockets and switches Insulation Material: the wall plate insulation gasket is made from EVA foam, which is , windproof, soft and insulating, and can effectively prevent accidents from occurring, Manufacturer: Akfldms