This is a BLEM set of Genuine Harley 9pc sockets, extension, and ratchet. Moisture got on them and there are spots of corrosion inside the sockets and possibly on the outside also. You can get most of it off with steel wool, ultrasonic cleaning, or rust removal liquids. These are MADE IN THE USA by Snap On tools for Harley Davidson to be sold in the Harley dealers. You get 3/8 to 3/4 inch 12 point Flank Drive sockets. Note that the tools will not say Snap On on them, however the patent number US5522288a is registered with Snap On tools