These carbon brushes are strong compatibility, suitable for most household sewing machine Size 5x5x12mm Package comes with 10Pieces Sewing Machine Motor Carbon Brushes Replacements Sufficient quantity to meet daily repair and replace need Enhancing your sewing machine efficiency with our 250W sewing machine motor carbon brushes, crafted from metal, rustproof, not easy to break and deformed, good durability and long service time Great for home sewing enthusiasts, professional tailors, and anyone who frequently work in sewing project and want to machine reliability Widely used for home sewing rooms, craft classes, or tailor shops where regular maintenance is to maintaining optimal machine operate