General description The 4X Universal Motorcycle Fuel Vacuum Gauge Carburetor Synchronizer Tool is designed for precise synchronization of motorcycle carburetors. This tool is essential for maintaining optimal engine performance by ensuring that each carburetor is balanced correctly. Technical specifications Color: Black Lens Color: Transparent Material: Plastic + Metal Size: Diameter: 7 cm / 2.75 inch Height: 9 cm / 3.54 inch Measurement allowed error: +/- 1-3 cm Package contents 4 x Motorcycle Vacuum Gauge Balancer Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product.