A Ball Winder is a time saving piece of equipment you will not want to be without and a necessary tool for anyone working with yarn. Any yarn can be quickly made into a center-pull ball in minutes. The built-in clamp fits easily onto a table. Clamp it to your table, just a few feet away from your swift and crank the handle. In a matter of minutes you will have a stackable, center-pull ball. Ball winders are also useful when for winding multiple strands of yarn into one ball. It is all but impossible to reap the benefits of a ball winder without a swift. We carry two sizes of swifts, so be sure to pick up one of these also.