I was in Hobby Lobby this week searching for Iwata airbrushes and found these sanding needles. They also have other small sanding pads and files that should be very useful. The sanding needles work very well. I tried them out tonight and was very impressed. There a little expensive. I'll have to see how long they last. However they will reach into places that are very hard to reach with my other sanding tools so I think they may be worth it.