General description Comprehensive package includes 10 bobbins and 1 bobbin case, providing plentiful supplies for all your sewing creations. Crafted from iron and steel, these sewing bobbins and bobbin case offer long-term durability, ensuring smooth performance for every stitching project. Technical specifications Bobbins length: 33.2 mm Bobbin case length: 48.8 mm Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with Singer models: 27, 28, 127, 128 Usage Ideal for quilting, garment repair, and DIY craft projects Reliable assistants for a breadth of sewing endeavors Other information Colour: As shown Material: Silk cloth Package contents: 10 bobbins, 1 bobbin case Note: Light reflection and different displays may cause the color of the item in the picture to differ from the real thing.