... both the outer and inner corners for tile wall transition and floor edges,helps the setting of the tiles,marble and wood ... the arch form,contributes to the elegant look of corners. Tile Trim Specifications Material:PVC Specification:6mm,8mmm,9mm,10mm,12mm ... Length:2.5m,2.6m or as your request Tile Trim ColorsMarbleYou can choose colors from the following pictures: