Quality Park 9 x 12 Postage Saving ClearClasp Envelopes with Reusable Redi-Tac Closure

9" Width x 12" Length - 28 lb - Clasp - Kraft - 100 / Box. Innovative, self-seal, Redi-Tac clasp for repeated use and mailing with no metal clasps. Great for home, office, school, interoffice or USPS mailing.