This product can be used when utilizing electric power steering in classic cars, Suzuki vehicles, and others. It generates a simulated engine speed signal (pulse) and sends that signal to the electric power steering unit, enabling the use of electric power steering. It is also ideal for installation on vehicles where the engine speed signal cannot be obtained. ◆ It generates a simulated idling speed signal, and it is believed that full assist will be provided even without a vehicle speed signal. ◆ A (blue) LED rotation signal indicator lamp is installed, making it easy to confirm operation. ◆ The power supply is for 12V vehicles only. ※ Please refrain from using this product on public roads, as it is a competition-only part. This product is handmade, but it has been manufactured to emit a square wave, considering high quality and durability! ●Product Details● Body size: 50mm x 30.8mm x 19mm Wiring length: 150mm Body weight: 40g ▲Package Contents▲ ・Rotation signal generator (main unit) ・Instruction manual We will provide prompt and courteous service.