ACOS GP-79, EVG 2803D, Tonar 307, Pfanstiehl 117-D1, Empire TAE 5010D StylusYou will be receiving a new stylus. This stylus can be used to replace any of the following styli, including but not limited to part numbers:Acos GP79Acos GP-79Duotone 954DEmpire 5010DPFANSTIEHL 117-D1 From their original numbering system. Not the same as today’s 117-D6 ADC stylus.TAE 5010D Tonar 307This stylus is used on the following cartridge:Acos GP79Acos GP-79 Needles purchased from our company are GUARANTEED AGAINST DEFECTS FOR 90 DAYS. A Quality Stylus. Satisfaction Guaranteed.