This 3 speed fatcore bobbin is clear lacquered and can be used on the S10, S10DT, S15, S51, S51DT and S75 wheels. The bobbin has a sheave with three settings on one end to obtain three different spinning speeds but also has a core of 50mm (2”). The fatcore effects less pull on the yarn for more control on cotton and fine slippery fibers. The ratios are: 6.5:1, 9.5:1 and 15:1.
All prices are shown in USD.