Schluter RONDEC - 90 Degree Inside Corner - for 3/8" Thick Tile - Satin Anodized Aluminum by Schluter RONDEC - 90 Degree Inside Corner - for 3/8" Thick Tile - Satin Anodized Aluminum FeaturesDesigned to fit specifically RO100AT Profile onlyFor use as inside corner onlyPart Number IV/RO100AT . .