Features: 60pcs wire thread insert, M3, M4, M5, M6, M8, M10, M12, different size to meet your different needs. Made of premium quality stainless steel wire, corrosion resistance, high temperature resistance and wear resistance. Anti-loose, fine workmanship to prevent from falling off effectively. With a certain elastic, can make the load on the thread is more even, durable for a long time use. With a plastic box, easy to carry and collect, protect the components. Specification: Material: Stainless Steel Color: Silver Package Size: 13 * 6.8 * 2.2cm / 5.12 * 2.68 * 0.87in Package Weight: 120g / 4.23oz Contains: M3 * 0.5 (10pcs) M4 * 0.7 (10pcs) M5 * 0.8 (10pcs) M6 * 1.0 (10pcs) M8 * 1.25 (10pcs) M10 * 1.5 (5pcs) M12 * 1.75 (5pcs) Package List: 60 * Wire Thread Insert