Finally, a countertop form that was truly designed to allow you to build beautiful, cast-in-place, concrete countertops. With the patented Z-Counterform you simply place 1/2" cement backer board on top of the cabinets, screw it down and fit the the Z-Counterform to the edges and back wall. After the concrete has been poured and cured, you simply pull and snap off the Z-Counterform to reveal a beautiful, smooth edge. It's that easy!!