HEIRLOOM Class 15 Metal Bobbins – 12 pcs in Storage Box

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A convenient set of twelve Class 15 metal bobbins packed in a reusable storage case. Metal bobbins offer durability and inertia for steady, even winding—ideal for heavy threads or high‑speed stitching. Compatible with Singer Class 15 machines and many models from other brands; always check your manual for bobbin class. Perfect for organizing thread colors for quilting and garment projects. Show more