This Walco replacement needle, model W-5MGS, is designed for use with Astatic AC and ACD series pickup cartridges. It features a synthetic sapphire tip, ideal for playing 33 1/3 and 45 RPM records. The needle is new old stock (NOS), ensuring it is unused and in excellent condition. Installation is straightforward, with instructions provided on the packaging. Manufactured by Walco Electronics Co., Inc. in East Orange, NJ, this needle promises trusted quality and tested performance. Perfect for restoring your vintage record player to its original sound quality.