JAM Paper 4" x 9.5" White Business Envelopes, Bulk are perfect for your everyday mailing needs. These envelopes are a great fit for sending invoices, statements, announcements, invitations, greetings and much more! They can also be used to store and organize important documents around the house, office, or anywhere that needs tidying up. No matter the occasion, our envelopes promise superior efficacy for all your needs!Details:White4.125in. x 9.5in.#10 commercial size Made from 28lb. paperCommercial flap and gum closureAvailable in multiple counts