The Royal Baths Shower base is precision-made exclusively from Acrylic. This premium acrylic is available in a wide range of colors that match any plumbing fixture or bathroom decor. Your new shower base is also available in the unique, patented Royalmarbyl^TM. In either finish, you can order an entire luxury bathroom with whirlpool, skirts and vanity bowls. There's luxury in the installation, because this shower base - like the Royal Baths' tubs - is strong, sturdy, and pre-leveled. The high tile flange prevents water damage, and the multi- layer composite backing gives a sturdy feeling for years to come.