Special Features:UniversalItem Weight:38g Model Name:23254 Origin:Mainland China Specification: Product specifications: thickness: 10mm, (excluding 4 angle iron) outer diameter: 40.8mm (without black silicone ring) Line position function: Red line (Button +12V power supply line) Black line (button LED light negative control) Yellow line (key switch positive power trigger output control) 3-line function description: + Positive trigger output control, after pressing the start button, the yellow line outputs +12V; the black line connects the button light to control the negative output line, and the button light illuminates. Package Included: 1 x Auto Car Engine Start Stop Push Button Do dropshipping ? Yes,we do.If you have any question please contact us. Production Material Safety? All products are 100% brand new, workable and checked carefully before sending out. When is the parcel sent? We will send out order within 5 workdays. The delivery time will vary according to different countries and will be affected by weather, public holidays and so on. If order doesn't received in declare time, please contact us. How about refund? Full refund if the item does not match the description or defective.