Strengthen in-house communication with Quality Park 2-Sided WR Redi-Tac Inter-Department Printed Envelopes. Unlike traditional envelopes these are designed for repeated use and come preprinted with labeling columns to help employees stay productive and organized. Thanks to the reusable Redi-Tac adhesive trading materials will be straightforward for everyone involved. Seam Type: Center Flap Type: Cheese Blade Trade Size: 97 Security Tinted: No.