Package contents 1 x Sewing Machine Bobbin Case Product specifications Size: 3.80X3.50X1.20cm / 1.49X1.38X0.47in Color: case Material: POM bobbin case for sewing machine Key benefits Durable construction: made from sturdy POM material for long term use and resistance to deformation. Smooth operation: precision workmanship and a smooth surface reduce friction and improve sewing performance. Reduces thread problems: helps prevent knotting and unraveling at the start and stop of stitching, producing more consistent seams. Easy to install and remove: designed for straightforward replacement on compatible household sewing machines, suitable for both beginners and professionals. Versatile use: practical for home sewing, garment production, and tailor work. Function and performance Serves as a direct replacement bobbin case to hold the bobbin securely and support consistent thread tension. Built to withstand regular use while maintaining shape and function, helping sewing machines run more smoothly. Typical use scenarios Home repairs and alterations: a worn bobbin case to restore smooth stitch formation on a household sewing machine. Small garment production: maintain consistent thread tension for hemming, seams, and finishing in a tailor or home studio. Sewing classes and hobby projects: quick installation for students and hobbyists who need reliable machine performance during practice and small projects. Notes Check dimensions and compatibility with your sewing machine model before installation. Package includes one bobbin case only.