Polish up your mailings with JAM Paper #10 Business Premium Envelopes, a sleek and unique alternative to the standard white envelope you're used to. Our Smooth Black business envelopes are made from smooth high quality 24 lb. paper, perfect for delivering letters, invitations, greetings, notices, announcements, business correspondence, promotional/marketing materials, thank you cards and more! Their versatility makes them great for weddings, graduations, birthdays and holidays. No matter the occasion, our envelopes are certain to leave a lasting impression. This pack contains 50 envelopes, each with a booklet opening, straight flap, and moisture activated gum closure. Size: 4.125in x 9.5in | Color: Smooth Black | Quantity: 50/pack