Nilight horizontal bar Clamp Mounting Kit simplifies the installation of Nilight off road LED light bars onto your roof rack, bull bar or head Rack. The Kit can be used for tubes sized at 1", 1-1/2", 1-3/4" & 2" In diameter. Includes an Allen Hex Key with purchase. Color: Black Color application: can be used on tubes of 1", 1-1/2", 1-3/4" & 2" In diameter. Apply to most off road vehicles, cars, trucks, boats, farm vehicles, construction vehicles, etc. Can work with most LED, HID, Halogen lights, Fog lights, driving lights, LED work light and light bars. Package include: 2 x clamp 2 x 1" Rubber insert (2 pieces) 2 x 1-1/2" Rubber insert (2 pieces) 2 x 1-3/4" Rubber insert (2 pieces) 2 x doubled sided tape 1 x Allen Hex Key.