Our 100lb (270gsm) heavyweight Brand business card paper is both Inkjet and Laser compatible. The 100lb white heavyweight Stock is too heavy for most home printers but will work great on professional grade printers. Our blank business cards are created with the standard layout and are compatible with all major software. These blank business cards are microperforated and are printable on both sides. Each sheet measures 8 1/2″ x 11″. Made from 100lb (270 gsm) white blank business card stock. 10 business cards per sheet.