All Louet bobbins have a lacquer finish. Louet standard and high-speed bobbins are large, easily holding 6 oz or more of yarn.

Ratios for bobbins:

• Standard 5.5, 7.5, 10.5:1
• Fatcore 6.5, 9.5, 15:1
• High speed 6.5, 9.5, 15:1

These bobbins fit older Louet S10, current S10 Concept Wheels with Irish Tension, S15, S17, S51, and S75 wheels. They do NOT fit S40, S45, S87, S90, or Victoria.