Function: The spool cap is an essential component that attaches to the spool pin, securing the thread and make it unwinds smoothly during sewing. 1 x Spool spool. Quantity: 4PCS. Compatibility: This spool pin is specifically designed for various models, including for 4423, for 4432, for 4452, for 5511, for 5523, for 5532 for Heavy Duty, for 5554, for 6510, for 6550, for 7312, for 7322, for 7350, for 7360, for 7380, for 8260L, for 8275, for 8280, for 8770, for 9100, for 9340, for 992DE, for ET-1, for H74.
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