LED Lights are NOT included and are sold SEPARATELY. This mount features a 2.5" diameter round base with 7 bolt holes. The base holds a 1" diameter ball which connects to a 3.69" long arm. At the end of the arm is another 1" diameter ball which connects to a 6.25"x2" mounting plate. Great for permanently mounting multiple SRM, SRQ or D-Series lights on a flat surface with maximum adjustability.