Schluter® SHELF-N Rectangular Niche Shelf — Square (Grid) PatternThe Square pattern on SHELF N features a clean grid texture understated enough to work in almost any bathroom, distinctive enough to add something to the space. It's the most versatile pattern in the lineup. Fits directly into Schluter's KERDI BOARD SN prefabricated niche for a no fuss installation. The shelf locks into place and gives you a functional ledge sized for shampoo, body wash, and whatever else needs to live in the shower without falling