Windaze Portable Hand Operated Manual Wool Winder Holder for Swift Yarn Fiber String Ball (Small) Transforms hanks or skeins into clean, neat center pull cakes or balls that sit nicely while you knit and crochet Perfect for creating 4 oz. center pull balls Built-in table clamp allows it to be firmly fixed at the edges of tables, chairs, benches, or any other convenient locations Works on table thickness up to 1.4" Easy to assemble and disassemble, so it can live in it's little box when you are not using it