GS Power Tube Clamp Brackets (Choices 1/1.25/1.75/2 inch). Mount LED Light Bar Radio Whip Antenna Safety Flag on Bar Rack Roll Cage Bumper on Can-Am RZR Rhino Teryx Boat ATV UTV Bike (2 pc) Full aluminum alloy construction that will never rust Mount hole diameter: 10.5 mm. Can be easily enlarged by drilling. Drilled location will also never rust Fits 1" Tubes, Bull bars or Roll Cages on Rhino, RZR, Teryx, CAN-AM, Jeep etc Bracket Sold as a Pair (2 per Purchase)