First Day Cover Sleeves – Safe, archival storage manufactured with the highest standards. Our completely archival sleeves are 100% free of stearates, chemical plasticizers and are free of plasticized pvc. Our sleeves are fully transparent, rigid polyester and are crystal clear on all sides to preserve and maintain the visual quality of your item.
50 Top Opening Heavyweight Sleeves 7-1/4″ x 4-1/8″H for US No. 6 Envelopes
