This is an aftermarket product imported from overseas. It's a set of six vintage-style, steel-pressed saddles for a Stratocaster. They have a slightly thin stamp like Fender Japan (or was it Mexico?), making them perfect for enjoying the atmosphere in a "pseudo" way. Note that Fender Japan saddles have the stamps facing opposite directions, but these have the stamps facing the same direction in both rows, just like the USA-made ones. They are chrome-plated, the saddles are approximately 10.5mm wide, and the set screws are M3 with a height of about 10mm. The saddle thickness is 1mm. An adjustment L-shaped wrench is included. Some sellers sell them without a wrench, but you often have to buy the wrench separately, so be careful. If you buy from us, you can save on extra expenses.