Description
Premium, high-quality Class 15 universal metal bobbins designed for traditional front-loading and drop-in home sewing machines. Precision-machined to standard industry dimensions ($21\text{ mm}$ diameter, $9\text{ mm}$ depth) to ensure perfectly smooth thread winding and flawless lower-tension control.
⚠️ CRITICAL COMPATIBILITY NOTE: These are standard-sized domestic bobbins. They will not fit high-speed industrial-style straight-stitch machines like the Janome HD9 or Janome 1600P series, which require much larger Jumbo bobbins.
Fits Models:
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Fits 90% of standard domestic sewing machines (Janome, Brother, Singer, Toyota, Elna, Silver) that utilize traditional Class 15/A-Style bobbins.
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Popular Janome Models: HD1000, 2212, 4120QDC, 525S, Sewist series, and classic front-loading mechanical models.



