Shifter Knob Features: new Real driver ball, excellent feel and qualityPlug and play,easy to install,drive-free use, only supports PC system with windows7 and above systems.high and low gear handball , suitable for players who modify G25 / G27 / G29H/ TH8A gear ETS2 & ATS,Including two switchers, one additional user-defined button,Can use the switch to quickly switch between high and low gears, up to 18 gears.The connector is made of aluminum alloy processing, compatible with all mainstream electronic gears on the market, compatible with 12mm, 10mm, 8mm connections, such as compatible (, , SQ, Kraton, Laishi) equipment, etc.) Features: new Real driver ball, excellent feel and quality Plug and play,easy to install,drive-free use, only supports PC system with windows7 and above systems. high and low gear handball , suitable for players who modify G25 / G27 / G29H/ TH8A gear ETS2 & ATS, Including two switchers, one additional user-defined button,Can use the switch to quickly switch between high and low gears, up to 18 gears. The connector is made of aluminum alloy processing, compatible with all mainstream electronic gears on the market, compatible with 12mm, 10mm, 8mm connections, such as compatible (, , SQ, Kraton, Laishi) equipment, etc.) Specification: Type:PC USB Shift Knob Usb Cable Length:2 Meters PC system:Support windows7 and above systems Material: ABS+aluminum alloy colour: black Package Contents: 1 x USB SIM Shifter Knob 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.