Features: 1.These bobbin thread fixing clips are made of plastic, strong and durable, and reusable. 2.This plastic bobbin thread buddies can organize threads and keep them tidy. It saves time to find small gaps on the bobbin to catch the thread. 3.The bobbin thread clamp can be used for most sewing and embroidery spools (except large commercial or extra large spools). 4.Suitable for clamping on the spool or removing it from the spool. When the bottom thread is not used, it is very helpful to prevent the bottom thread from separating. 5.Prevent the bobbin thread from unraveling and knotting, and insure that the bobbin is neatly stored and organized. specification:Item Type: Bobbin Thread Clamp Function: Suitable for sewing machine, spool storage device : 120Pcs, random color Material: Plastic PackageList:120 xBobbin Collection Clip