These 24-diode LED taillights easily install using a rubber grommet they simply push into place. This is a 4" round light (requires a 4-1/2" hole) with red lens. Flush-mount LED taillights stay out of the way of rocks and trees on the trail, last longer and shine brighter than OEM incandescent lamps. This item has a red lens for use as a stop/turn/tail light. These install right into Poison Spyder Customs Crusher Corners or Trail Corners (on units specifically ordered for LED taillights), or can be installed into other manufacturer's corner protectors or anywhere you can cut a 4-1/2" round hole in a flat panel. Includes the LED lamp assembly, rubber grommet and wiring pigtail harness. Sold each (order 2 if you need a pair).