200-piece combination spring kit, tension springs, swing springs, stainless steel compression springs, steel springs (with box)

High-quality materials: The tension spring is made of high-quality materials, stable and durable, flat and smooth, with smooth rivets, rust resistance, high ductility, and good fatigue resistance. Smooth edges: Our oscillating springs are well-made, the surface is carefully treated and will not scratch, and the internal spring is solid and difficult to break. The edges are smooth and won't hurt your hands. An excellent household tool: Easy to use and store, the combination of tension springs Compression and tension springs are a must-have for the home. You'll love this helical spring. What you get: 8 sizes of compression springs and 12 sizes of tension springs, you can choose according to your needs. Sufficient for your daily use. Wide range of uses: Steel springs are widely used in motor vehicles, major electrical appliances, medical equipment, electronic products, and other measuring devices.