Economy Dual Cylinder Root Grapples, 60" Our economy single and dual cylinder grapples are ideal for moving small logs, brush, rocks, or just about any type of debris. It leaves the dirt behind, which makes it an essential tool for clearing lots, as well as for storm damage clean up at job sites. The economy dual cylinder grapple is designed for tractors, allowing owners to get the full potential from their tractors. Dual grapples allow the operator the ability to handle uneven and odd-shaped material.