My fiance is into RC Cars, and often goes out and races them on Fridays. I asked his friends for recommendations on a wrench set, since he didn't really have any, and this is what they recommended to me. I shopped around, and found these a good price, so I went for it. He loved them! They are color coded, and bright so he doesn't lose them! He hasn't had any problems with them, and he's had them for almost 2 years now I think. A necessity for your RC Car tool box!