Review on High-Quality 60mm Rotary Blades for Quilters, 10-Pack - Compatible with Olfa, Fiskars, Martelli, Truecut by Natasha Gibson

I took a chance and bought these blades and am glad I did. I find these blades sharp and do NOT notice them dulling prematurely. The oiled blades come in a plastic case with a simple clasp. The only thing that bothers me about the packaging is that the blades are difficult to separate. (This is almost always a problem with multi-blade packs.) When I needed a blade, I couldn't just slide the top blade out of the stack, so I had to use a needle to poke under the first blade to close it lever out. from what's underneath. Since the blades are oiled, I then had to rub the top and bottom of the severed blade between my thumb and forefinger to ensure I only had one blade. (Cutters cut really weird when you make the mistake of setting two blades instead of one. Ask me how I know! Sigh.) I highly recommend these blades.