Synchronized Wiper Control will sync up to three motors and adds an interval speed position to the traditional two-speed motor. One short push takes the motors from interval, to slow, to fast speed. One long push activates the primary motor only. Includes synchronized controller, switch, and 5? wiring harness. Overload protected. CE Approved. Volts 12 Size 4-7/16" x 4-3/8"