The TEAC STL-103 is a replacement stylus designed for the TEAC LP-R550 & MC-D800 Turntable cartridge. It is recommended that you replace your stylus if you start to hear a change in sound quality to protect both your record & your turntable. Conveniently the STL-103 is supplied in a three pack so you can keep that record spinning. Easy to swap out youll get hours of enjoyment out of your vinyl collection. This replacement stylus is also compatible with the TEAC LP-R500 & LP-P1000.