Features: New real driver ball for enhanced feel and quality. Plug and play design for easy installation. Drive-free use, compatible with PC Windows systems running Windows 7 and above. High and low gear shifter head, suitable for use with G25, G27, G29, TH8A gear systems. Compatible with ETS2. Includes two switchers and one additional programmable button. Use the switch to quickly shift between high and low gears, supporting up to 18 gears. Connector made of aluminum, compatible with all mainstream electronic gear systems on the market. Supports 12mm, 10mm, and 8mm connections. Compatible with various equipment models.Specifications: Type: PC USB Shift Knob USB Cable Length: 2 meters PC System: Supports Windows 7 and above Material: ABS + Aluminum Color: Black Package Contents: 1 x USB SIM Shifter Knob Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual product. Measurement error allowance is +/- 1-3 cm.