1 Made of soft silicone, durable and reusable, organize threads and keep them tidy. 2 Made of soft silicone, durable, reusable, organize threads and keep them tidy. 3 Suitable for clamping or removing from the spool, when the bottom thread is not used, the bottom thread organizer is very helpful to prevent the bottom thread from separating. 4 Prevent the bobbin thread from unraveling and knotting, and make sure that the bobbin is neatly stored and organized. 5 With a large number clips, can meet your use and replacement needs, very practically
What's in the box
40 x Spool Clips