The 36" Orange Thunder® with KO-20™ Technology Square End Flexible Hand and Curb Darby is a game-changing tool for concrete work. Its flexible design, made possible by revolutionary KO-20™ technology, allows for easier forming of curbs. With lower surface friction, this tool speeds up the float's movement for quicker opening and a longer lasting surface. Engineered with a curved surface to evenly distribute paste and resist impact and chemicals, it requires fewer passes to complete a job. The ProForm® handle's texture ribbing ensures a comfortable and secure grip, even when wet.