Made of steel, which offers outstanding impact resistant, the solid construction is designed to against corrosion and damage. It is stable and practical, good performance, durable, it will bring you a good experience. Features -Color:Silver-Material:Steel-Size:2.20X2.00X1.20cm/0.86X0.79X0.47in- Seamless Compatibility: Compatible with a wide range of sofas, ensuring a perfect fit every time.- Built to Endure: Constructed from steel materials, offering exceptional durability.- Effortless Setup: Quick and very easy installation process, saving you precious time.- Ample Quantity: Providing an abundant supply for your furniture fixing needs.-It is mainly used to fix the built-in S-shaped spring of spring beds, sofas and spring chairs, etc.Packing list: 12 x Couch Spring Repair Buckles36 x Screws