Specification: 100% quality assurance tested, more responsive, less expensive, easier to install. Pressure adjustments range from 100-1000+ PSI. Provide for a maximum decrease of 57% in line pressure. Brings a much better overall braking performance. Allow you to fine tune the front to rear braking balance. Material & Color: Material: made of high qualityAluminum. Color: as picture. Package Included: 1xBrake Proportioning Valve. .