Features of Magnetic Stylus: Fixed hole distance for recording: 13 mm (measuring center distance of two holes). Four wiring marks for the cartridge: R+, R-, L-, L-. Standard wire color coding for turntables: R+ = red, R- = green, L+ = white, L- = blue. Recommended tracking force range: 1.5g–2g, adjustable based on personal preference. Features of Turntable Headshell (4 Pin Contacts): Compatible with phono turntable headshells and various turntable models. Works with S-shaped or straight tonearms. Plated 4-pin contacts. Includes four color-coded OFC (oxygen-free copper) soft lead wires with gold-plated terminals for improved o clarity. Each terminal is enclosed in a clear insulating sleeve. Model Number: Headshell Motor: For turntable use Speeds: 33, 45, 78 RPM Stylus Type: Magnetic Stylus Color: Black Material: Metal + Plastic Package Contents: 1 x Magnetic Stylus with LP Vinyl Needle 1 x Replacement Phono Turntable Headshell Note: The package includes only the items listed above; other accessories are not included. Note: Lighting and display differences may cause slight variations between the product color in images and the actual item. Measurement error allowance: +/- 1–3 cm.