Even the finest diamond stylus becomes worn after an extended period of play.The styli in VM cartridges are no different. But it is easy to replace the stylus and continue to use your cartridge. The renewed VM cartridges have 7 styli and 3 types of bodies to choose from. Not only is it not necessary to buy an entirely new cartridge, but you can also enjoy the experience of upgrading your stylus or trying a new cartridge/stylus combination.