Set of 12 extension springs suitable for machinery repair, garage doors, and DIY projects, providing a sufficient quantity for various applications Made of high-quality metal material, ensuring long-lasting performance and resistance to wear and tear The extended spring design with double hooks allows for secure attachment to mechanical equipment, helping ensure stable operation These tension springs offer consistent and reliable stretching force, ideal for applications requiring controlled tension or resistance Tension springs can be used in a variety of settings, such as production and assembly, experimentation, research and development, maintenance, and home repair 12 pieces x extension springs with hook ends. With a sufficient quantity included, you'll have the right springs on hand for your projects Offering reliable tension and flexibility, these springs are built to withstand heavy-duty use and ensure long-lasting performance Color: Silver Material: Metal Package Contents: 1 set x spring Only the above package content is included; other products are not included Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual item. Measurement may vary by +/- 1-3 cm