100 10 x 13 self-seal security white catalog envelopes - 28lb, 100 count, security tinted, ultra strong quick-seal, 10x13 inch (39100) aimoh 100 10 x 13 self-seal security white catalog envelopes - 28lb - 100 count, security tinted, ultra strong quick-seal, 10 x 13 inch (39100)