Features: 1.Thread control holder is made of high?quality plastic and have the good properties of durability and expandability 2.Spool holder can be used and keep for a long time, multiple colour will meet your differemt demands 3.Bobbin buddies can be used for most sewing and embroidery spools (except large commercial or extra?large spools), which saves time to find a small nicks on the bobbin to catch the thread 4.Spool thread clips are suitable for your various use and fit for most spools and bobbins 5.Thread control holder help sewing machine to create professional process, no mess for your sewing work specification:Item Type: Spool Clips Color: Yellow, blue, pink, transparent, green s: 5 Colors, 10 for each color PackageList:50 x SpoolClips