I have a set of B-Square and they are not very good quality. The blades are twisted on almost all of the tips on mine. I have a few sets of Hoppes that the extra blades go in the handle. I got them on clearance at an out of the way gun store for 5 bucks a piece. I have not seen them anywhere else. I always wanted a set of the higher dollar ones, but it has not been a priority for my money at this time.