Review on Efficient Hand-Operated Yarn Ball Winder Swift for Large Yarn Balls by Amanda Castillo

Some people have complained that the device doesn't come with instructions. To be honest I just searched YouTube for a 10 ounce curler and found some videos explaining how to use this machine. Concerns about scratches on the surface are justified. I happened to be using this on my desktop which isn't supposed to be pretty anyway so I don't mind it but make sure you put a bumper between the screw and your table or it will leave a circle or scratch. Otherwise it was the best price I could find online for something like this.