At one point in time Tru Turn was cutting them for free if you phoned and ordered direct from them. My LHS started to carry spinners under the Magnum brand name and they have turned out to be every bit as good as any of the other makes for A lot less money. They even come with an addapter that sometimes fits the engine you are using!! Not often but sometimes!!! I even found one once that didn't need to be cut for the prop I was using, how often does that happen?? I think that was the first and only time for me.