Features: New real driver ball, excellent feel and quality Plug and play, easy to install, drive-free use, supports PC Windows system with Windows 7 and above. High and low gear shifter head, suitable for players using G25 / G27 / G29 / TH8A gear ETS2 & similar models. Includes two switchers, one additional user-defined button, allows quick switching between high and low gears, up to 18 gears. Connector made of aluminum alloy, compatible with all mainstream electronic gears on the market, supports 12mm, 10mm, 8mm connections, such as compatible with Logitech, Thrustmaster, SQ, Kraton, Laishi equipment, etc. Specification: Type: PC USB Shift Knob USB Cable Length: 2 Meters PC System: Supports Windows 7 and above Material: ABS + Aluminum Alloy Color: Black Package Contents: 1 x USB SIM Shifter Knob Only the above package content, other items not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. Measurement allowed error is +/- 1-3 cm.