Sleek and rectangular top is cool concrete, handmade from a proprietary mix of marble, stone and granite powders with natural fibers for added strength in a shop powered without fossil fuels. Adding to the small coffee table's minimalist aesthetic is the clean-lined base, accented with a lightly brushed finish and hand-detailed corners. The Parsons Concrete Top/ Brass Base 48x28 Small Rectangular Coffee Table is a Crate and Barrel exclusive.