Mato Knitting Wooden Umbrella Yarn Winder Swift Very sturdy, durable and good for large amount of yarn Built to last, high quality and unwinds very smoothly large wooden knob at the top works as a weight while winding yarn circumference: 69 inch - clamp thickness: 1.5 inch - Height :26 inch Use it for any kind of skein - silk, merino, yak or cashmere yarn