A Jumbo size metal ball winder. Features include apecial nylon for cogwheels. They are super strong yet extremely quiet compared to metal cogwheels. This winder does not require any tools to assemble. The metal frame is painted by electrostatic painting so the paint will not peel. The edges of this machine are super smooth. It won't leave any marks on your table. It can handle about 10 oz (283 grams) of yarn. The winder can be clamped onto a table up to 2 1/8" thick. The picture shows how it handles an 11-oz yarn ball (yarn not included).