Louet Fatcore Bobbin for Bobbin Lead (Irish Tension) Wheels

Fatcore bobbin for all standard Louet wheels, not including S45, s90 and Victoria.
Ratios are: 6.5:1, 9.5:1, 15:1 with a core of 2". The fatcore reduces pull on the yarn for more control on cotton and fine, slippery fibers.

1.390