Multiple Sizes: This set includes 30 sewing machine needles in 5 sizes: 18mm, 16mm, 14mm, 11mm, and 9mm, with 6 pieces of each size. It meets all your daily sewing needs. Premium Material: Made of iron with a titanium-plated coating, these sewing machine needles are durable, rust-resistant, and won't break or deform easily, ensuring long-lasting performance. Precision Design: The Singer sewing machine needles feature a flat design that ensures stable installation on your sewing machine, providing a secure and consistent sewing experience. Wide Application: These brother sewing machine needles are perfect for various fabrics, including chiffon, leather, and denim. They're ideal for creating items like skirts, jeans, bags, and more. Strong Compatibility: These sewing machine needles are universally compatible with most household or old sewing machines, including Singer and Brother sewing machine needles, making them versatile for different sewing projects.