Create professional-looking correspondence, invitations and more 32-lb paper stock feeds automatically from your printer's paper tray. Ultra-fine perforations allow for easy, clean paper separation. Compatible with inkjet printers. Click & Create features preset templates designed for use in a variety of software programs. Meets U.S. postal regulations for postcards. 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. Made by Avery.