The covers are made of high quality ABS, will not fade from exposure Direct replacement for the stock cab marker covers. Perfect fit leak. Longer on/off response time and vibration resistance. High performance LED, long lifespan, superior lighting stability. Installation: Easy to wire: black to ground and red to positive.(Instructions are not included) For vehicles not installed, you may need to drill holes for installation. If the LED does not light up, simply flip it 180 degrees. (reverse the polarity) Type: Cab Marker Lights Condition: 100% New Light Color: White LED Type: 16 SMD Super Bright High Power Base Size: 3.95 x 2.8 inch () Hole to Hole Distance: 1.7 inch Part Number: 264142BK, 264142CL, 264142AM : for F-450 F-550 F-650 F-750 E-150 E-250 E-350 E-450 1999-2016 Material: ABS Color: Yellow Package Contents: 5 x Cab Marker Lights Only the package Above, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a