Avery 5889 Postcards, Color Laser Printing, 4 x 6, Uncoated White, 2 Cards per Sheet (Box of 80) Create professional-looking invitations, announcements, reminders, seasonal offers and more. Sturdy bright white cardstock is either matte-coated for vivid graphics and sharp text or has a premium quality glossy finish ideal for photos. Ultra-fine perforations let you separate cards cleanly and easily. Meets U.S. postal regulations for postcards. Easy to customize with free templates and designs using Avery Design & Print Online.