Quality Park Redi-Strip First Class Envelopes - First Class Mail - 10" Width x 13" Length - 28 lb - Peel & Seal - 100 / Box - White

First-class catalog envelopes feature postal-approved, green diamond border and a convenient Redi-Strip closure. Removable strip provides a clean, quick seal immediately upon contact. Simply peel off strip that protects the adhesive from dust for a longer shelf life. Sturdy, 28 lb., open-end style envelopes offer a First Class border.