WESTVA : Columbian® Duralok® Security-Tinted Open End Expansion Envelopes
Security-lining assures privacy of contents. Tamper-resistant Grip-Seal® closure is easy to use -- simply peel and press. Advanced multi-layer construction provides durability and resistance to water, moisture, bursts, tears and punctures. Premium white wove stock shell and inner reinforcement fiber layer. Ideal for bulky professional mailings. Envelope Size: 12 x 16; Envelope/Mailer Type: Security/Confidential; Closure: Tamper-Resistant Grip-Seal®; Trade Size: N/A.