FoRapid Large Capacity Aluminum Bobbins 25mm x 10.6mm Less Resistance High Tolerance Sewing Accessory for Most Industrial Sewing Machines Lockstitch Pack of 10

These brand new, high quality large capacity aluminum bobbins will fit industrial sewing machines using large capacity sewing hook. Aluminum bobbins are considered the top-end "Luxury Bobbins". They add much less resistance or drag to the bobbin thread tension, ideal for difficult or problem applications. Aluminum is usually machined to higher tolerances than steel. They are recommended by Sewing Machine Manufacturers for Machines with thread undertrimmers. Dimensions: outside diameter: ~ 1 inch / 25mm, inner diameter: ~ 0.22 inch / 5.7mm, height: ~ 0.42 inch / 10.6mm. Please check size against your old bobbin. Suitable for many single needle straight stitch machines, good for most industrial sewing machines. Package includes 10 pieces of large aluminum bobbins. Note: These bobbins are not slotted. They will not fit in many quilting machines bobbin rewinders., Manufacturer: FoRapid