Leading Edge Lighting TL-44010-PR Pair of Square Box Tail Lights, Incandescent Trailer Light Set 5-17/64" L x 4-9/16" W x 2-7/8" D - Pair of Trailer Lights, left and right side included Two Bulb Style with replaceable lenses and bulbs - 1157 and 194 bulb 2-stud mount on 2" centers, Hardware included, Quick Connect sockets for easy and fast installation, No connectors needed! See picture for details - Technical support provided via 888-823-8288.