I installed this in an ION turntable to improve the sound over the included cartridge. It makes records sound much more full with less surface noise and reduced pops and clicks from scratches. Smoother tone and slightly higher audio level is obtained from the installation as well. Includes all the hardware, needle, needle guard and four new wires for installing into an existing or a new tone arm shell. The needle guard can stay on the cartridge and flips up for use, down for needle protection.