NuTone 52WH244PF Metro Classic Medicine Cabinet with Flat Trim, 24 by 4-Inch Reversible installation allows right or left hand door opening Exterior mirrors are premium float glass ensuring distortion-free viewing and a rich reflection 3 adjustable glass shelves provide light reflection, strength and easy cleaning Snap-fit shelf supports ensure glass shelves stay in place, but can be easily removed for cleaning 14-1/4-Inch wide wall openings allow for easy retrofit installations, or between studs for new construction