This is an aftermarket product imported from overseas. It's a set of 6 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 vibe, even if it's just a "look-alike." However, while Fender Japan etc. have the stamps facing opposite directions, these have both rows of stamps facing the same direction as those made in the USA (both facing the opposite way). Chrome-plated, the saddles are approximately 10.3mm wide, with M3 grub screws approximately 10mm high. The saddle thickness is 1mm. An adjustment L-wrench is included.