Features:_x000D_ _x000D_ High quality and useful. _x000D_ Made of good alloy material, durable and anti-corrosion. _x000D_ Brand new high quality bobbin case for industrial sewing machines. _x000D_ This bobbin case #6-7 is a standard capacity bobbin case that fits many industrial sewing machines. _x000D_ Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. _x000D_ _x000D_ Specification:_x000D_ Material: Alloy_x000D_ Weight: 82g_x000D_ Size: 4*2.5cm/1.57*0.98in_x000D_ _x000D_ Color: Silver _x000D_ Applicable Models: #0302, #0303, #0318, #6360 etc. _x000D_ _x000D_ _x000D_ Package Includes:_x000D_ 1 x Sewing Rotary Machine_x000D_ _x000D_ Note:_x000D_ 1. Please allow 1-3mm error due to manual measurement. Thanks for your understanding._x000D_ 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1High Quality and useful. 2Made of good alloy material, durable and anti-corrosion. 3Brand new high quality bobbin case for industrial sewing machines. 4This Bobbin Case #6-7 is a standard capacity bobbin case that fits many industrial sewing machines. 5Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start.