Ivory 6x76 Window Sill/CurbA universal need for every bathroom installation; designers, installers and homeowners have been endlessly seeking a solution for finishing their bathroom tile installations. When installing a shower or tub surround there will ultimately be an area such as the shower curb, or wall where a field tile will need to transitioned or capped. Designed specifically as a finish for shower curbs and doorway thresholds. Pre Sealed: Pre sealed to improve