Thickness: 65 lb cover (180 gsm). 2 to 3 times thicker than standard printer paper, but not as thick as heavyweight cardstock. Enhanced durability for your projects while retaining the versatility for crafting and printing. Print with Laser and Inkjet printers. White Cardstock Pack of 40 pieces Thickness: 65 lb cover (180 gsm). 2 to 3 times thicker than standard printer paper, but not as thick as heavyweight cardstock. Enhanced durability for your projects while retaining the versatility for crafting and printing.