5" - 1/2 x 13 thread - Mirror Mount Bracket Extension Bundle.

Bundle includes 

• Two 5" Chrome Plated Mirror Mount Light Bracket Extensions
• Two Mirror Turn Signal Single Light Housing 
• Two Watermelon lights - Choice of Roadworks, United Pacific, or Grand General and color choice of Amber/Amber or Amber Clear 
• Two sets of three 22" - 18 guage wires, 3 per side.