What the Best yarn winders Pros Do (and You Should Too)
http://www.colegiosentli.edu.mx/portal/index.php/forum/user/313220-j8outhm607
This ball winder is great. It is well made and the gears under the part where the yarn goes are concealed so you don't have to worry about yarn getting caught in them. Thats why i chose this model over the one