It's user-friendly design includes eight spokes per side, instead of the traditional four to six spokes, in order to keep lane lines from falling between the spokes and jamming while being rolled up. The powder-coated frame resists corrosion, and the heavy-duty casters can swivel 360 degrees for easier maneuvering. Optional cover protects reel and lines from elements. For more information, including product specifications and CAD drawings, email info@srsmith.com or call 800.824.4387.