1..2Made of Made of Metal, sturdy and can be used for a long time.3The bobbin case is always applied as a replacement part for sewing machines with front-loading bobbin systems, it can also be applied as a spare case.4Bobbins can stop spinning more quickly, effectively preventing unraveling or tangling of bobbin thread when sewing operations stop and start.5Suitable for majority of front-loading machines, such as Babylock, Bernina, Brother, Elna, , , Singer .Colour: silverMaterial: metalSize: 205x108x6mmPackage Contents:4 x Sewing Machine Bobbin Case28 x bobbinsOnly the above package content, other products are not included.Note: Light 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 +/ 1-3cm.