3" x 5" 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.