Shop Nilight 4PCS Roll Bar Clamps Mounting Brackets LED Light Mount Clamps Tube Light Mounts Fit on 2.135″ 2.25″ 2.375″ 2.5” Bull Bars Roof Racks Roll Cages for ATV UTV Truck in high quality, support 2 Years Warranty. It is applicable for bull bars roll cages or any round bar on motorcyle, bicycle, ATV, UTV, Boat, JEEP, trucks. Compatible with various types of light bar brackets the 10mm screw hole diameter fits all light with 8mm mounting screws.