1STABLE AND RELIABLE: Sewing machine bobbin case can be well fixed to prevent the thread on the bobbin from coming apart or tangling when working or stopping. 2FLEXIBLE OPERATION: The bobbin can stop rotating faster, flexibly control the bobbin stop and start to get professional sewing results. 3STAINLESS STEEL MATERIAL: This bobbin case is made of premium stainless steel, sturdy and durable, practical, lasting performance, can be used for a long time. 42PCS SET: Contains 2pcs bobbin shell, suitable for most multi functional home sewing machines, you can change it according to your own interest or share it with others. 5EASY INSTALLATION: Compact and lightweight, the sewing machine shuttle shell can be effortlessly installed on your sewing machine for uninterrupted sewing. 2 xSewingMachineBobbinCase