Required for installation of Revolver Throttle Kit on bikes with ignition and starter switches in stock throttle assembly. Fits 7/8" bars (22.2 mm). Extra-narrow design is only 26 mm wide. Push In/Out engine switch. Momentary 2-pole starter switch. Starter switch has two separate circuits, one normally open, one normally closed for street bikes that use a headlight/starter cutoff. 550 mm long wiring harness with brake light switch circuit wiring. Brake light circuit wiring pigtail 120 mm long with female spade connectors. Stainless steel screws and internal rubber pad positions switch on handlebar securely without drilling holes. Wiring harness has bare, tinned wires without connector for easy installation of OE connector body. Made in Italy by Domino.