The O Sew Hand Held Sewing Machine has a single thread and single speed. It's perfect for on the spot repairs and much more. There is a thread bag included. Its suitable for silk, denim, wool, leather and much more. Bonus items include bobbins, needles, thread spindle, and threader. Use only on fabric and paper. 2 x AA batteries required but not included. Remove batteries when not in use for prolonged periods of time.