Sumnacon Umbrella Yarn Winder - Hand Operated Knitting Winder Tools, Wool String Ball Winder Holder Machine, Metal Hank Yarn Winder This Metal Yarn Swift is a Handy Tool for Holding and Feeding Skeins of Yarns into a Yarn/Ball Winder to Create Yarn Balls. Best Umbrella Yarn Winder for Swift Winding Lines, Laces, Yarns, Fiber or Other Strings Adjustable Clamp Permits Vertical, Horizontal, or Angled Operation Easy to Use and Store, It Folds Down Flat and You Can Let It Attached To a Table Max. Diameter for 22 inch / 56cm