Simplify your mailing needs with these Office Impressions #10 Peel Seal Business Envelopes. These envelopes require no moistening or tape for sealingsimply remove the guard from the adhesive strip & press the flap to the envelope for a secure seal. Made with 24-lb white wove paper, the envelopes are sturdy & offer a clean, professional lookgreat for mailing paychecks, personal mail, business mail, promotional materials & much more! Seam Type: Side; Flap Type: Square; Trade Size: #10; Security Tinted: No.