Product: Bobbin case compatible with Brother sewing machines replacement bobbin case for sewing machine supplies Key benefits Restores sewing capability: an old or broken bobbin case to get the machine back to working condition without replacing the whole unit. Smooth thread delivery: Shuttle shell sleeve design helps guide the bobbin thread for steadier, more consistent stitching. Portable and convenient: Lightweight and easy to carry, suitable for keeping as a spare in a sewing kit or workshop toolbox. Suitable for production use: Designed as an industrial sewing machine accessory part to help improve workflow and production efficiency. What it does Holds the bobbin securely and regulates bobbin thread tension as the machine sews. Fits machines that use a shuttle shell sleeve style bobbin case and is compatible with Brother sewing machines that accept this type. Intended as a direct replacement for worn, damaged, or missing bobbin cases to restore normal operation. Important attributes Function: Replacement bobbin case for secure bobbin retention and consistent thread feeding. Compatibility: Compatible with Brother sewing machines that use a shuttle shell sleeve bobbin case. Design type: Shuttle shell sleeve bobbin case for smooth thread delivery. Portability: Lightweight and easy to transport or store. Practical use scenarios Home sewing : Swap in this bobbin case to fix a household sewing machine that is skipping stitches or jamming due to a damaged bobbin case. Small production : Keep spare bobbin cases on hand to minimize downtime on industrial or use machines and maintain steady output. Teaching and workshops: Provide a durable replacement part for classroom machines so students can continue practice without interruptions. Notes for users Confirm your machine uses a shuttle shell sleeve bobbin case and is compatible with Brother models listed in your machine manual before . the bobbin case when signs of wear, damage, or threading problems appear to maintain stitching quality. This bobbin case is a practical replacement part that helps restore reliable operation and supports smoother sewing performance for compatible machines.