Check the listing for details. Pro LED BRK20 Aluminum Mirror Mount Bracket For Use With Various Light Beacons. Condition: New. Listed at 54.95 USD. Aluminum Mirror Mount Warning Light Bracket Product Details:Manufacturer: Pro LEDPart Number: BRK20Aluminum Emergency Light BracketPre-drilled to Allow Easy Installation of Various Light BeaconsAdditional Mounting Holes Can Easily Be Drilled Through This Aluminum Warning Light Mirror MountFits Mirror Brackets Up To 1-1/8" In DiameterCan Be Modified To Work With 1-1/4" Mirror Brackets By Drilling The Clamp Screw Holes Slightly LargerHeight (mirror arm center to top of platform): 3-1/2"Platform Diameter: 5-1/2"Predrilled to accept the following Pro LED lights: 500Y, 220A, 60AS & MS75ACThis Bracket Is Designed To Mount The MS75AC At A 45° Angle To Best Display The Amber & White Light Shipping:Items purchased by 12:00 pm Central time Monday through Friday typically ship same day. Orders placed after 12:00 pm may ship the next business day Thanks For Looking!