Durable: The mount brackets are made of aluminum alloy. They have excellent performance including anti-shock, heat-resistant and anti-corrosion. Their high quality guarantees that they can be used in bad weather conditions including rainy days and storms.Multi-Functions: This pair of clamp bar roof roll mount bracket is cheap with multiple functions. They can be assembled on the round-tube clamp bar whose diameter is 15-30mm. Moreover, the anti-loose screws can be installed tightly.Wide Usage: They are compatible with most LED, HID, halogen spotlights/fog lights/driving lights or light bars.Anti-Slip: The internal sides are designed with anti-slip tooth. Besides, the lines are very clear. So the brackets can grip the mount tightly.360 Degree Rotation: Their heights are adjustable with 360 Degree rotation. They can raise the height of the LED light bar to protect it from being scratched while driving.Diameter: 25mm(with thin liner inserts)Diameter: 19mm(with thick liner inserts)Material: strong and light-weighted black aluminumColor: BlackRubber inserts dampen driving vibration &avoid scraping bullbar surfaceHigh quality and Allow to add more lights on vehicle without drillingFix the light on tube firmly,pre-drilled hole for easy installationApply to most offroad vehicles,cars,Trucks,boats,farm vehicles etc.It could be the tubes, Bull bar, roll cage etc.Material: Aluminum, rubberPackage Contents:6 * brackets12 * Screw3 * wrench12 * pair Rubber PadOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.