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 40 x Spool Huggers Clip(10 x Yellow, 10 x Red, 10 x Blue, 10 x Green) Item Type: Spool Huggers ClipSpecification: 40 x Spool Huggers Clip(10 x Yellow, 10 x Red, 10 x Blue, 10 x Green)