JAM Paper Tyvek #9 Document Envelope 3 7/8" x 8 7/8", White, 500/Box (2131080D)

JAM Paper White #9 Tyvek Envelopes measure 3 7/8 x 8 7/8 inches each. There is an even total of 500 envelopes in this box. Each one of these envelopes is made out of smooth, high quality, durable, and weather-proof genuine Tyvek material. Tyvek is a registered trademark of DuPont, the established chemical company responsible for developing this durable polymer. A superb choice for a wide variety of home and office mailing needs, these envelopes feature a basic and versatile white color. Each one of these envelopes has a commercial style flap opening and a reliable, peel-and-self, self-adhesive closure to keep the items placed within secure as they travel through the mail.