Grabobbin, the magnetic bobbin organizer. This handy tool measures 8in long and holds up to 16 metal bobbins. The Grabobbin features a rounded channel with a magnetic strip embedded into the bottom. The magnetic strip anchors metal bobbins securely in place. Easily unwind bobbins by placing them in the Grabobbin and pulling on the thread tail. The bobbin will spin in place as it unwinds. Put an end to loose, tangled threads and run away bobbins. Measurements: 3/4" x 1 1/4" x 8".