Highly Polished Stainless Steel Light Beacon Bracket 14-Gauge, 304 Stainless, #8 Mirror Finish Base Size: 7" x 7" Pre-Drilled To Fit Pro LED: 220A, 500Y, 60S, 2472A, 2501A, 2511A, 2599A & Many Other Popular Light Beacons Additional Mounting Holes Can Be Drilled If Needed Pro LED BRK4 Stainless Steel Side Mount Bracket for Warning Light Beacons, 14 Gauge, 304 Stainless, #8 Mirror Finish