4" x 6" SuperScan press-on vinyl envelopes - long side open. Extra large Size is great for pallet rack applications. Short side open features a self-adhesive backing and side load design. White inserts for laser/inkjet printing included. Long side open features a top load design. Made from a Clear, matte finished plastic with a self-adhesive backing. White inserts for laser/inkjet printing included. Reclosable single track zipper securely closes the side of the envelope to keep inserts clean and moisture free. Self-adhesive backing adheres to any dry, smooth surface.