Quality Park No. 10 Security Tinted Business Envelopes with Reveal-N-Seal® Self-Seal Closure, Security, #10, 4 1/8" Width x 9 1/2" Length, 24 lb, White, 500 / Box

No. 10 Security Tinted Business Envelopes feature a Reveal-N-Seal closure for the ultimate convenience and security. Self-seal closure alleviates the need to moisten flaps and throw away pull-off strips. Simply fold the bottom flap up and press for a secure seal. Perforated lines along flap show evidence of attempted tampering. Innovative design preserves the adhesive and lengthens shelf life until use. Security-tinted envelopes make it impossible to see content details. Send out business correspondence with the assurance of quality and security.