Single Left Window Security Envelopes, 4 1/8 x 9 1/2 Inches, 500 Pack

These security envelopes measure 4-1/8 by 9-1/2 inches and are designed with a self-sealing closure for quick and secure sealing. They feature a tinted interior for added privacy and are made from 24-pound paper for durability. Each pack contains 500 envelopes, suitable for secure mailing and confidential documents.