Each bobbin is made of Russian, birch plywood. The plywood is furniture grade and solid throughout. The bobbins are 6 and one-half inches long from inside to inside and 8 and one-half inches from outside to outside. The the width is three and one-half inches. Each bobbin, just like our others, has a 66 nylon bearing in each end so no wear on the flyer shaft. The bobbin speeds are 6:1, 9:1 and 13:1.
Set of three Super-de-dooper Bobbins
Set of three of these awesome bobbins. Each bobbin will easily hold 6 - 8 ounces and more if careful winding on, for more like 10 to 12 ounces. Great for bulky yarns and plying. You will not find better or larger bobbins anywhere. Three speed ratio of 6:1, 9:1 and 13:1 in lovely Russian, birch, plywood. This wood is furniture grade and solid throughout.