Premoistened instant-stick convenience for fast, hygienic mail processing Self-Seal(R) closure seals without moistening - simply press flaps together for a secure, strong seal. Adhesive sticks immediately; no waiting for flaps to dry. Security-tinted inside for privacy and confidentiality. Made of crisp 24-lb white wove for a substantial feel. Columbian(R) Self-Seal(R) Security Envelopes, #10, 4 1/8in. x 9 1/2in., White, Box Of 100 is one of many Business Envelopes available through Office Depot. Made by Columbian.