... They can be used as general molding, stone trim, stone crown molding, threshold, base molding and even simple door or window ... in sections and then bonded together to create your finished Arch to size.3. Color: Red, Yellow, White, Green, ... Cap, Pedestal, Arch Design, Windows and door, also Balustrade and Rail base, Steps, Tiles, Countertop……. exterior half marble molding arch moulding sculpture