What you get: The package includes 4 pieces, a sewing machine bobbin case that you can change and replace according to your interests, or share with others Application: robbin case is always applied as spare part for sewing machines with front loading bobbin system, also can be used as spare case Function: bobbins can stop bobbins thread faster, effectively preventing the bobbin thread from unraveling when sewing operations stop and start Size: each bobbin case is about 22.75mm in diameter, suitable for most machines sewing machines, such as Babylock, Bernina, Brother, Elna, Janome, Kenmore, Singer, etc Material: the bobbin case is made of stainless steel, durable and very practical, can serve for a long time</ p> Product Description Applications: Application: The robbin case is always used as a spare part for sewing machines with system front loading reels. It can also be used as a spare bobbin case. Function: The bobbins can stop spinning much faster, effectively preventing the bobbin thread from winding or tangling when the sewing operations stop and start. Specification: Material: stainless steel Size: approx. 22.75 mm in diameter Colour: silver Quantity: 4 pieces Package includes: 4 x Bobbin cases Note: Please check your sewing machine model before buying. The brands mentioned above are not applied as trademarks, just for compatibility reasons."