Product Features: Multiple Insulation to Meet Your Needs: there are 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 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 Energy 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 energy and leave a comfortable living environment 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 Single board + double board + three board Material: EVA colour: White Package Contents: 30 x single socket insulation gaskets 15 x double gang 15 x triple gang switch insulation gaskets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.