These machine needles are made of material, they are durable and sturdy for a long lifetime. The set include 4 standard sizes sewing machine needles, suitable for most sewing machines. Durable and practical replacement needles supplies. Features - Color: Random Color. - Material: Metal. - Size: About 4.5 x 0.2 x 0.2cm/ 1.77 x 0.08 x 0.08inch. - These machine needles are made of material, they are durable and sturdy for a long lifetime. - Universal regular point sewing machine needles for most woven fabrics. - Hard structure sewing machine needles not easy to bend. - Standard size sewing machine needles with a flat shank, suitable for most home sewing machines. - Size 9 for thin fabrics; Size 11 for chiffon fabrics; Size 14 for cotton and linen fabric; Size 16 for thick fabric. Package list: 12 x sewing machine needle