Content: 21 pieces
Dimensions: 70 mm x 20 mm
Colors: pink,light green, blue
Flexible sorting aid for colour matching lower thread bobbin and thread spool
Suitable for almost all thread spools
This is how it's done: the lower thread bobbin is placed on the bobbin holder and simply clamped into the thread spool of the matching colour.
Made in China for Prym (Germany)