Features of Magnetic Stylus: Fixed hole distance of recording head: 13 mm (measuring center distance of two holes). Four wiring marks on the singing head: R+, R-, L-, L-. The standard wiring color for record players is: 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 other turntables. 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 sound clarity. Each terminal is enclosed in a clear insulating sleeve. Model Number: Headshell Motor: For turntable 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 Only the above package content is included; other products are not included. Note: Lighting and display settings may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1–3 cm.