Keeping your trailer up to par, is an important safety protocol. Especially when it comes to a vehicle crashing into you on your one and only day out on your boat this year, due to faulty break lights. Stocked everything you need to mount them properly, you get a nice little light that could potentially save your rear, as well as others.2823283 7-Function Left or Roadside 2823284 6-Function Right or Curbside Under 80" Combination Tail light #80 Series Universal 2" on center stud mounting Screw-on main and side marker lens allows for easy bulb replacement Designed for a variety of under 80" light-duty trailers Quick connect and disconnect wiring feature Meet FMVSS / CMVSS 108 requirements Dimensions: 4-3/4" x 4-1/2" x 2-9/16"