Features 1.High Quality and useful. 2.Made of good alloy material, durable and anti-corrosion. 3. new high quality bobbin se for industrial sewing machines. 4.This Bobbin se #6-7 is a standard pacity bobbin se that fits many industrial sewing machines. 5.Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. Specifition Features: High quality and useful. Made of good alloy material, durable and anti-corrosion. new high quality bobbin se for industrial sewing machines. This bobbin se #6-7 is a standard pacity bobbin se that fits many industrial sewing machines. Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. Specifition: Material: Alloy Weight: 82g Size: 4*2.5cm/1.57*0.98in Color: Silver Applible Models: #0302, #0303, #0318, #6360 etc. Package Includes: 1 x Sewing Rotary Machine Note: 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. 2. Monitors are not librated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. Package List