Frost King 84" x 120" x 0.75 mm 1-XL Standard Window/Patio Door Indoor Insulation Kit

This indoor window and patio door insulation kit from Frost King® provides you with shrink film and double-sided tape to insulate a standard-size window. Insulation film on windows helps increase their R-values by up to 90 percent, thus providing energy-saving efficiency. Insulation window kits also stop drafts and help lower your utility bills.