Knitting Umbrella Plastic Metal Swift Wool Yarn String Winder Holder Hanks Skeins Line for Swift Winding Lines, Laces, Yarns, Fiber or Other Strings Use  Perfect craft tool.this umbrella yarn swift ball winder is a great tool for knitting and crochet Design  The clamp-on base allows it to be firmly fixed at the edge of tables, chairs, benches They work well with ball winders. The bonus is that these incredibly easy to store as the swifts fold down after use making storage much easier This spinner will make your life much much easier