OLFA 45mm Rotary Cutter Replacement Blades, 5 Blades (RB45-5) - Tungsten Steel Circular Rotary Fabric Cutter Blade for Quilting, Sewing, Crafts, and Scrapbooking Fits Most 45mm Rotary Cutters

Good product. It does come in foreign packaging not usa. Was a bit odd but they seem authentic and cut excellent. The packaging was a bit damaged and one blade was a bit out of round/dull. Other than that I would rate it a five star!

Ive tried other brands blades but always come back to Olfa! They stay the sharpest longest, they cut through many layers of fabric at a time. (Ive cut 6!) which significantly cuts down on time when you are cutting itty bitty pieces for a quilt! Ive also cut paper with these blades so nice! Just make sure you close the safety on it as they are super sharp. Ill admit to a trip to the emergency room and some stitches when I neglected the safety on this... Also for the amazon.com price you cant beat even with a great sale at your local fabric/quilt/craft store!!!

This blade doesnt fit the handle as well as the blade it replaced. Not sure why, but its a bit wobbly, although its been secured as tightly as it is possible to make it. It works, but I have to be a bit more careful about how I set it against the fabric and the ruler.

from semi transparent packaging - the hole looks just to be round but when you open you see it is the right shape as shown think I could have used round hole ones - but this shape was on my board from someone using on an old dark gray Fiskar board with an orange guard and orange grid - seems to work fine

At the price I can blades for frequently

I use these blades for sewing and quilting. They are very good.

Nice having one when I need it.

Worked fine. Get dull too soon

Olfa replacement rotary blades are the very best. When you pay good money for beautiful fabric you sure dont want to take a chance on messing up when cutting. I comparison shopped all over, brick and mortar stores also, and Amazon is my choice for this product. Quilters were recently discussing using rotary blades for a carpet cutter from a discount hardware provider in lieu of the real thing because the cost was so attractive; not a good idea. Quality tells in the long run.

Wish blades lasted long. Use blades for cutting fabric for quilting.