Features: High speed automatic cutting thread, it is very efficient and convenient. Made of plastic, and anti-corrosion. Bobbins stop spinning faster, preventing unraveling or tangling of bobbin thread when sewing operations stop and start. Easy to use and store, very convenient. This bobbin case is a standard capacity bobbin case that fits many household sewing machines. Specification: Material: Plastic Color: Black Product Modal: XC3152021, XE7560001, XC3152-221 Applicable Model: as follow Suitable for Brother 900D, BC-1000, CE-2000, CE-4000, CE-5000PRW, CE-5500, CE-5500PRW, CP-6500, CP-7500, CS-4000, CS100, CS100T, CS-4000, CS-6000, CS-6000b, CS-6000i, CS-6000t, DS-120, DS-140, ES-2000, EX-660, FS-20, FS-40, FS-40WT, HE-240, HS-1000, HS-2500, LB6770 PRW, SE-350, SE400, XR-4040, XR-6600, XR-7700 & XR-9000. Package list: 1 * Sewing Bobbin Case HIGH-SPEED CUTTING THREAD: Automatic Cutting for Increased Efficiency and Convenience DURABLE Material: Constructed with Quality Plastic for Durability and Anti-Corrosion TANGLE-FREE: Prevents Unraveling or Tangling of Bobbin Thread When Sewing Operations Stop and Start EASY to Use and Store: Convenient Design for Easy Operation and Storage