Create and send professional-looking correspondence Paper stock feeds automatically from your printer's paper tray. Ultra-fine perforations for easy, clean paper separation. Heavyweight printer postcards are compatible with inkjet printers. Click & Create features preset templates designed for a variety of software programs. Avery postcards meet U.S. postal regulations. Envelopes are sold separately. Forest Stewardship Council (FSC) - for wood/paper products from forests certified to the 'gold' standard of responsible forestry. Forest Stewardship Council US-0081. FSC Certification ensures responsible use of forest resources and provides assurance that the fiber in this paper comes from forests that are well-managed to protect biodiversity and the livelihoods of the people that depend on those forests. Avery (R) Laser Post Cards, 4in. x 6in., White, Box Of 100 is one of many available through Office Depot. Made by Avery.