Bobbin Size: 20mm diameter x 11.5mm height; Bobbin hole has a diameter of 6.2mm. - Suitable for most sewing machines such as , , , , Singer, etc. Comes with a clear plastic storage case for easy viewing and organization of bobbins. Convenient and - Premium clear plastic allows you to easily see when your bobbin is low and can be reused multiple times. Perfect for pre-winding your embroidery bobbin so it's ready when needed, and for keeping extra bobbins on hand to wind different colors of sewing thread to suit your projects. Color: White Material: Plastic Size: Bobbin: 20mm x 11.5mm x 6.2mm Package Contents: 125 x Clear Plastic Bobbins 5 x Plastic Storage Boxes Only the above package content, other products are not included. Included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3 cm.