La caja de la bobina contiene la lanzadera giratoria de una máquina de coser doméstica, que se utiliza para cambiar piezas en las máquinas de coser.

Smooth Operation---The bobbin stops rotating, preventing thread from tangling or getting caught during sewing interruptions or restarts. High Efficiency---High-speed automatic thread cutter and high-quality sewing machine accessories improve work efficiency and make the sewing process smoother. Practicality---Made from high-quality plastic, durable and corrosion-resistant. Exquisite craftsmanship, smooth and scratch-free. Applicable Models---This bobbin case is a standard capacity case, suitable for many household sewing machines.