This foam window sealing kit comes with two separate foam strips that add up to a total length of 13 feet, with each strip measuring 2 inches wide, 1 inch thick and 6.5 feet long to support flexible layout for different gap sizes. Made of non-hazardous raw materials, the product maintains stable performance across a wide temperature range from -40°C to 96°C, with no degumming or structural deformation after long term use. It delivers reliable flame retardancy, heat insulation and oil resistance, effectively blocks outdoor drafts and ambient noise, and cuts unnecessary energy loss for heating and cooling systems. It works well on uneven gaps, irregular surfaces and narrow slits around doors and windows, and also fits sealing needs for refrigerators, AC units, HVAC systems, automobiles, RVs and marine facilities. The installation process requires no professional tools, users only need to measure the gap, clean the target surface, cut the strip to proper size, remove the backing paper and press firmly to expel trapped air for tight adhesion. Material: Rubber.