12 Pack - CleverDelights White Prewound Bobbins - Size L Bobbins - 3/8" x 13/16" 12 White Prewound Bobbins 60 Weight - 100% Polyester High Tenacity Bobbin Thread - Approximately 120 Yards per Bobbin Size L Bobbins - 3/8" x 13/16" Compatible with many machines, see product description for full compatibility list CleverDelights brand