Peel & Self-Seal White Letter Mailing Long Security Envelopes 4-1/8”x 9-1/2” #10
#10 Self-Seal White Business Envelopes – 4 1⁄8 x 9 1⁄2″ – Save time and effort with convenient self-seal closure.- #10 is the most popular size for letters and invoices.- Peel off adhesive paper strip and press for a permanent seal.- Security tint for privacy and confidentiality