1 -2 1/2 Red LED Round AUX Sealed Stop Turn Tail Light 

Specs:
- Auxiliary Use Only
- Poly-carbonate Lens and Housing
- 100,000 Hour Rated LED Life
- 5 Year Warranty
- 3 LED's
- 3 Wire Leads

Dimensions:
- 2.5" Diameter
- 0.8" Depth

- The "hole size" is about 2-3/4"

- Includes grommet