Protect and mail important documents with these cello sleeves. Made from acid-free, sturdy plastic and measuring 8.93" x 11.25" in size, these cello sleeve envelopes are designed to store and send a multitude of special mailings in style and safety. These smooth cello envelopes are popularly used in the office, home and school for delivering announcements, business correspondence, invitations, marketing/promotional material, photos, letters, certificates and much more! With a self adhesive strip closure, your documents stay protected in one place. From personal to professional mailings, these unique envelopes cater to all your needs in superior efficacy.Details:Available in multiple colors8.93" x 11.25" each100 sleevesSelf adhesive closureAcid freeSturdy plastic