Package of 8 Lightweight, large-capacity M-class slotted aluminum bobbins. Recommend each owner have at least 10 bobbins on hand. M-class bobbins can vary in weight, thickness and diameter. For best results, always use HQ-recommended bobbins.

• Made of: Metal
• Use: EZ Wind Bobbins
• Size: Size M
• Included: 8 Bobbins Per Pack