Features: 1.The bobbin is made of high quality aluminum material, exquisite technique, practical and durable. 2.Manufactured in accordance with strict quality control standards and have been improved to improve durability. 3.Aluminum core is suitable for flat sewing machine; Inclined aluminum bobbin is suitable for flat car and embroidery sewing machine. 4.Sewing machine bobbin is easy to install and easy to use, supporting good sewing technology. 5.Wonderful accessory for you to sew clothes, replacement part for sewing machine. specification:Condition: 100% Brand New Item Type: Sewing Machine Bobbin Material: Aluminum Optional Color: Yellow, Bronze, Blue, Green, Red Functions: Flat car, sewing machine, embroidery sewing machine bobbin Diameter: Approx. 2cm / 0.79in Height: Approx. 1cm / 0.39in PackageList:100 x Sewing Machine Bobbin