Give recipients something to talk about! JAM Paper Cello Sleeves with Self Adhesive Closure are a unique alternative to the standard envelope and are USPS approved to send various mailings. They are popularly used for sending promotional/marketing materials, artwork, invitations, personal mail, greeting cards, and bulky items. They are also excellent for storing photos, important documents, and more! From personal to professional mailings, these unique envelopes cater to all your needs in superior efficacy.Details:Purple6.0625" x 6.1875"100 cello envelopesAdhesive strip closureBooklet openingStraight flapAcid free translucent plastic