Mango Spot Portable Yarn Fiber String Ball Wool Winder Hand Operated Holder Very easy to wind your yarn into balls by simply turning the crank. Light weight, easy to install on working desk or bench. Low noise when working, convenient and portable. Material: plastic and alloy Dimension(Length x Width x Tall): 8 5/8'' x 3 3/8'' x 8 5/8'' (22cm x 8.5cm x 22cm)