Feature: 1. With 200pcs springs in a carrying box, it is easy for you to use and carry, you can put it into your bags or your car easily. 2. With 12 sizes extension springs and 8 sizes springs for your different needs. 3. This springs are made of steel material, not easy to break, has a long service time, you do not need to change it often. 4. It can be widely used for tools and equipment, automotive and daily use. 5. The box can also hold other small items such as buttons, pins, etc. Specification: This is a set containing 200pcs springs of different specifications and sizes, with storage boxes and already classified. With this set, you no longer need to buy these springs separately, saving you time and money, you can use them directly, come on and try it, it will not let you down. Features: With 200pcs springs in a carrying box, it is easy for you to use and carry, you can put it into your bags or your car easily. With 12 sizes entension springs and 8 sizes springs for your different needs. This springs are made of steel material, not easy to break, has a long service time, you do not need to change it often. It can be widely used for tools and equipment, automotive and daily use. The box can also hold other small items such as buttons, pins, etc. Specifications: Material: steel Springs size: 7*13, 6*12, 5.5*27, 9.5*16, 9*18, 9*35, 5.5*38, 7*19 Extension springs size: 5*10, 5.5*14, 6*10, 8*13, 7.5*17, 8.5*26, 8*50, 7*55, 4*70, 5*34, 7*25, 8*23 Package size: 210 * 110 * 30mm / 8.3 * 4.3 * 1.2in Package weight: 380g / 13.4ounce Packing list: 200 * Springs Package List: 200 * Springs