The indoor window kit contains everything you need to insulate five standard 3-by-5-foot windows. The kit contains one sheet of 62-by-210-inch crystal clear plastic film, one roll of 1/2-by-1080-inch double-sided tape and six alcohol surface wipes. Once taped to the window frame, the crystal clear film heat shrinks with a blow dryer to seal out drafts and cold. For indoor use on painted or varnished wood, aluminum and vinyl surfaces only.