This lightweight, compact castle wheel will spin fine to medium yarn using the 3 drive ratios and bulky yarn with the optional jumbo flyer. The wheel is easy to start with double treadles that are hinged to allow a comfortable heel-toe action. Ball bearings make treadling smooth and effortless. The separate drive band and bobbin brake adjustment is easy to understand and simple to operate. Four bobbins are supplied and are quick and easy to change.