Schluter Eck-K W 1-9/32in. Retrofit Stainless Steel 8ft. 2-1/2in. is a finishing and edge-protection profile for the outside corners of tiled surfaces on walls. The vertical wall section of the profile provides a decorative finish and protects adjacent tiles. Other applications include transitions for dado coverings such as carpet, natural stone, or cold-cured resin coatings.