ABS plastic; Ever need to charge your phone on the go? This duo USB universal car adapter allows you to do just that ; Remove cigarette lighter from dashboard and replace with device ; Features large standard imprint area visible even when device is in use; Power supply / Technology: Input: 12-24 volts, Output: 50V/1,000mA on one side and 50V/2,100mA on opposite side (as labeled) (Tablets such as iPad will charge only on 50v/2,100mA side); USB cable not included; LED power indicator lights up blue while charging; Product Size: 4 l x 1.375 w x 0.625 d