The Micro-Burst™ strobe light features a bright flash in a small package. This quad flash version allows you to easily notify other vehicles and pedestrians of your presence delivering mail and stopping frequently. Each strobe light unit features a magnet mount with a Cord of 2.5 feet, stretching to 12 (max) and a cigarette lighter plug with an on/off swtich. Measures 3 1/2" x 4". Ships USPS Insured.