16-inch flexible radius pool trowel high-grade blue steel blade flexes to the various radius. This trowel has a short aluminum mount attached to a 16-inch x 4-inch blue steel blade with 5 rivets to create a wider range of motion for the blade. 16-inch flexible radius blue steel pool trowel has rounded edges, measures 16 inches long by 4 inches wide, and a wooden curved camelback handle.