Feature:1. Thread control holder is made of highquality plastic and have the good properties of durability and expandability2. Spool holder can be used and keep for a long time, multiple colour will meet your differemt demands3. Bobbin buddies can be used for most sewing and embroidery spools (except large commercial or extralarge spools), which saves time to find a small nicks on the bobbin to catch the thread4. Spool thread clips are suitable for your various use and fit for most spools and bobbins5. Thread control holder help sewing machine to create professional process, no mess for your sewing workSpecification:Item Type: Spool ClipsColor: Yellow, blue, pink, transparent, greenSpecifications: 5 Colors, 10 for each color.Package List:50 xSpool Clips