Tsubame Kogyo Ribbed Kraft Envelope Long 1 pack of 100 sheets x 3 packs Bulk sale Some sheets have been used. Please judge from the images. Economical ribbed envelopes. Recommended for delivery notes and internal company communications. These are thin kraft envelopes with a ribbed pattern. * Not suitable for postal mail due to thinness. * Not compatible with printers. * No individual sales. Ribbed Posting Inner bag Sorting It seems that some sheets have been used, but I haven't counted them! Please judge from the images.