[Product description] 

A bobbin case for industrial sewing machines.
The anti-idle spring prevents the bobbin from spinning when the machine stops, reducing thread slack and breakage inside the bobbin case.

[Compatible Bobbin Sizes]
See the second image for reference.
Please choose the correct bobbin case for your machine.

[Quantity]
1 piece

[Material]
Bobbin Case: Hardened Steel
Spring: Hardened Ribbon Steel
Case: Polyethylene

Made in Japan 1 piece

Bobin case: Steel (burning processing)
Spring: Burnt ribbon steel
Case: Polyethylene
Japan