This is a Walco replacement needle model W-147STS, designed for the Euphonics J-1-3HC cartridge. It features a synthetic sapphire tip and is suitable for 33 1/3 and 45 RPM records. The needle is new old stock (NOS), ensuring vintage quality and performance. Installation is straightforward: remove the old needle, insert the new one, and ensure it is securely in place. The packaging indicates trusted quality and tested performance, making it an ideal choice for maintaining your record player’s sound quality.