12 1/2 inch Square White Invitation Envelope JAM Paper is committed to providing YOU, our customers, with colorful, high-quality office supplies. JAM has all your office supply needs covered, not to mention in ANY color you could want!! Use JAM Paper White Square Envelopes for all your larger mailings. Made from 28 lb. paper and measuring 12 1/2" x 12 1/2", these white envelopes eliminate bending, folding, and creasing while keeping your contents protected. Insert marketing materials, unique invitations, announcements, corporate dinner invites, brochures, calendars, and more to clients, customers, and family. Appropriate for office, home, and classroom use. Available in a variety of sizes, finding your perfect fit is just a click away! This pack includes 250 white envelopes. Each envelope has a square opening, straight flap, gum closure, and smooth finish. Size: 12.5in x 12.5in | Color: White | Quantity: 250/pack