These fit my Olfa cutter (which many others don't) and the price was great. Most of the time, I have to pay $8.99 for one official Olfa blade, these were a great bargain at $1.00 per blade. I'm using one currently, it's very sharp and we'll see how long it lasts. The nice thing is I can, at this price, change blades more often. I will most likely order these again! Thank you.