JAM Paper 11.5" x 11.5" Large Square Invitation Envelopes, White, 100/Pack (03992321B)

JAM Paper® White Square Envelopes are the envelopes you need for all your larger mailings. Measuring 11 1/2" x 11 1/2" and made from 28 lb. paper, these envelopes are your reliable resource for sending unusually large contents. Ideal for inserting blueprints, announcements, magazines, flyers, marketing materials, paperwork, artwork, and much more. No matter what the material, your contents stay organized, secure, and stylish. Appropriate for both office and home use. Available in a variety of sizes, finding your perfect fit is just a click away! This pack includes 100 white envelopes. Each envelope has a square opening, straight flap, gum closure, and smooth finish.