I bought 11 packages 2 weeks ago and have used one blade for the last 2 weeks on a quilt top, mini bow tuck, 2 clutches, 3 mug rugs and it is still as sharp as ever. For .75 I'll chance it and return any dull ones. $16.50 for 22 blades is great. I could only get 3-4 blades for that price with coupons.