Features of Magnetic Cartridge Stylus: Fixed hole distance of recording head: 13 mm (measuring center distance of two holes). There are four wiring marks at the end of the singing head: R+, R-, L-, L-. Generally speaking, the wiring color of the end of the record player is: r + = red, R-= green, L + = white, L-= blue. Recommended needle pressing range: 1.5g-2g, can be adjusted according to personal preference Features of Turntable Headshell (4 Pin Contacts): Fits phono turntable headshell for technics and other turntables. S-shaped or straight tonearms. Plated 4-pin contacts. Four colour-coded OFC (oxygen free copper) soft leadwire with gold plated terminal for a cleaner sound. Every terminal inside a clear sleeve Model Number: Headshell Motor: For turntable Speeds: 33,45,78 RPM Stylus Type: Magnetic Cartridge Stylu colour:Black Material:Metal + plastic Package Contents: 2 x Magnetic Cartridge Stylus With LP Vinyl Needle 2 x Replacement Phono Turntable Headshell Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.