General description The 2X Universal Motorcycle Fuel Vacuum Gauge Carburetor Synchronizer Tool is designed to help balance the carburetors of motorcycles efficiently. This tool is essential for ensuring optimal engine performance by synchronizing the vacuum levels in the carburetors. Technical specifications Color: Black Lens Color: Transparent Material: Plastic + Metal Diameter: 7 cm / 2.75 inch Height: 9 cm / 3.54 inch Measurement allowed error: +/- 1-3 cm Package contents 2 x Motorcycle Vacuum Gauge Balancer