Frost King Indoor 84 In. x 110 In. Patio Door or Picture Window Insulation Kit

Crystal clear plastic sheet that shrinks tight and wrinkle free with an ordinary hand-held hair dryer. Easily installed on metal, painted or varnished, wood or vinyl clad frames with double-faced tape. Increases R-value of single pane doors up to 90%. Includes 1 plastic sheet 84″ x 110″ and double faced tape 1/2″ x 42″. Insulates 1 patio door up to 7′ x 9′ or can also be used on picture windows.