In a hurry and needing to print up information cards on my Laser printer--just like I did the day beforeon a different package--these WOULD NOT WORK. I wasted 5 hours battling my printer only to finally discover the QUALITY of the paper on these cards wouldn't work in my printed. Take them back! I need a better bond with a smoother finish--but there doesn't seem to be another choice at Staples.
These index cards without the lines are excellent for printing a small card. They were just the right size for the cards I printed in an inkjet printer for a group. Each attendee received one.
On line shopping had many options 4X6 index cards. Confused I went to the store in Merced CA. Found unlined cards with finish that I can write on and also print good colors.