Item 5331. DMC Bobbin Winder. Made for winding DMC’s bobbins with floss, ribbon, threads or yarns. Has a slot to fit over an organizer box. Use with DMC brand plastic or cardboard bobbins. Will not fit other brands of bobbins. 3½" long; 1½" wide. Has a plastic pin which fits into the hole of the bobbin—this holds the bobbin to the winder while it is being wound. Not for use of small children.