Why you need it: Improves sound from records by enabling precise tone arm adjustments and proper needle placement. What it does: Allows you to adjust the head and arm directions to ensure the needle is correctly positioned. Uses a vertical track angle block to achieve accurate alignment between music player and record player, supporting proper hand positioning for better performance. Build and clarity: Made from materials to provide strength and clear visibility of results during adjustments. How it helps performance: Precise adjustments reduce mistracking and improve overall sound quality through stable, accurate needle placement. How to use it: Scenario 1: After replacing a cartridge, use the tool to finetune tone arm alignment for tracking. Scenario 2: During setup of a turntable or after transport, align the system using the vertical track angle block to ensure accurate needle placement. Scenario 3: For routine maintenance, adjust directions of the head and arm to correct any drift and maintain performance. Key attributes at a glance: Function — tone arm adjustment for head and arm directions and needle placement; Alignment aid — vertical track angle block for precise pairing of music player and record player; Material — ; Performance — strong, clear visibility of results during setup.