Specification: Material: ABS Quantity: 1 PCS Color: Gray Weight: 0.44 lb Size: 4×4.33 inches Package Includes: 1 Sensor, 1 Power Supply, 3 Pairs Screws Feature: Responsive, Accurate, Durable Fit Type: Universal Fit More product information: -Dual laser head design to assist with two cars parking. -Please note that this product has a sensing function and the laser beam will not appear unless the vehicle is close. -Provide you with accurate parking reference points to improve parking and reversing safety.