Features: new Real driver ball, feel and quality Plug and play,easy to install,drive-free use, only supports PC windows system with windows7 and above . high and low gear handball head, suitable for players who G25 / G27 / G29H/ TH8A gear ETS2 & , Including two switchers, one additional -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 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.