Features: Achieve precise alignment of music player and record player with our vertical Track angle block, ensure the correct placement of needle for better performances. Made from quality material, our tonearm alignment tool provides both strength and clarities, allowing you to clearly see the measurement result. Suitable for all music enthusiasts, our tonearm alignment tool is essential for anyone love to achieve better sound reproduction from their record. Whether you're performing at live, enjoy your favorite album home, our tonearm alignment tool ensures accurate Track. Used to adjust different directions of the head and arm to ensure that needle is correctly place. Specifications: Material: Acrylic Size: about 75x45x9.5mm/2.95x1.77x0.37inch Package Includes: 1x VTA Azimuthal Ruler note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.