This cartridge has a very low mass stylus so small it cannot be seen by my naked eye. It sounds wonderful and it shows little or no wear under a 200x microscope that it lit on both sides.It features a boron cantilever and a nude line contact stylus.The whole shebang is super small and delicate, so if you broke it… you bought it! It will be packed very securely. If youre in porch pirate country, I suggest you purchase additional insurance or at least let us know to require a signature upon delivery. Sold as described. From the web:Monster Cable Genesis cartridges were made in collaboration between designer Hisayoshi Nakatsuka (ZYX) and Namiki Precision Jewel Company, who supplied the magnet structures.The Alpha series is reported to be the work of Sao Win.The design criteria read almost exactly the same as the ZYX carts with the 3 dimensions of frequency, level and time.