Features of Magnetic Stylus: Fixed hole distance of recording head: 13 mm (measuring center distance of two holes). There are four wiring marks on the singing head: R+, R-, L+, L-. Generally, the wiring color of the record player is: R+ = red, R- = green, L+ = white, L- = blue. Recommended needle pressure range: 1.5g–2g, adjustable according to personal preference. Features of Turntable Headshell (4 Pin Contacts): Compatible with phono turntable headshell for various turntables. Suitable for S-shaped or straight tonearms. Plated 4-pin contacts. Four color-coded OFC (oxygen-free copper) soft lead wires with gold-plated terminals for improved sound clarity. Each terminal enclosed in a clear 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; other products are not included. Note: Lighting and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1–3 cm.