I buy the 45MM blades through Amazon Prime. They come in a ten pack for $15.97 and are made by Quilting Bee, called just bee in the first part of the description. I just checked to see if they were still listed as It's been a good year since I have purchased any, and they were for our local 4H girls. They are, and the price is still $15.97 for 10 and are still a prime item.