Silky Smooth Ultra Thick 100lb Cover Cardstock by Printure works great for making your own greeting cards or invitations! This cardstock paper features is very thick and features a premium silky smooth finish to give an enhanced presentation both in looks and feel. The silky smooth finish also produces superior color reproduction for a professional look! The stock is made from a thick 100lb Cover (270 gsm) White Cardstock and is designed to work in Inkjet or Laser printers. This cardstock measures 8 1/2" x 11" and works with Inkjet or laser printers.100lb cover cardstock is a very thick cardstock that will not work in most home printers due to it's thickness. Please consult your printer manual before ordering to ensure that it can accept stock weighing 100lb cover or 270gsm.