SGS Glass Cleaner (Ammoniated Formula) Neutral Cure Silicones it has a beveled nail

it has a beveled nail slot at each end

The low-battery sensor causes the indicator lights to blink when the battery needs replacing

They are designed to be installed in new and retrofit applications that allow at least 3/16" (5 mm) space behind the mirror

Our Smallest Capacity Circle Cutter from 1/2" to 5" (12 to 127 mm)

SGS Glass Cleaner (Ammoniated Formula) Neutral Cure Silicones it has a beveled nail**Ammoniated Formula** No Hazing or Streaking One of The Glass Industries Preferred Glass Cleaners Leave No Residue "Streak less Shine" Great for Windows, Mirrors, Windshields, and Other Surfaces Dissolves Grit, Dirt, Grease and Grime VOC Compliant