Spool Pin Felts

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All sewing machine vertical spool pins need a Spool Pin Felt on it to allow the spool to turn freely, giving a more even thread tension. The weight of the spool dragging on the har d plastic or metal body if the machine as well as stickers on the end of the spools are an overlooked factor that causes upper thread tension to be uneven or too tight. A simple Spool Felt solves this. Package of four felts for all sewing machines. Show more