3M Top Print Packing List Envelope PLE-T1, 4-1/2 in x 5-1/2 in (Box of 100) 4.5" x 5.5" top-printed, side-loaded envelope reduces transit loss of documents Provides control and protection of on-package packing list and invoice documents Designed with printed message: Packing List/Invoice Enclosed Offers convenient peel-and-stick document attachment Features a polyethylene backing, synthetic rubber adhesive and paper liner Tough film helps reduce puncturing and tearing