Features: 1. High quality engine valve spring, wear resistance, not easy to damage. 2. Exquisite workmanship, high precision, large flexibility, can be perfectly adapted to your engine. 3. Beautiful appearance, small size, wear resistance, long service life. 4. Cylindrical design, stable and safe performance, easy to install and use. 5. Made of high hardness 65 manganese material, strong, anti-corrosion, durable. Specification: Condition: 100% Brand New Item Type: Valve Spring Material: 65 Manganese Material Model: S195 Spring Outer Diameter: Approx. 36 mm / 1.4 in Inner Diameter of Spring: Approx. 28 mm / 1.1 in Free Height: Approx. 50 mm / 2 in Uses: Multiple Uses Wire Diameter: Approx. 4 mm / 0.2 in Pitch: 8.8 Approx. mm / 0.3 in Direction of Rotation: Right-handed Rotation Shape: Cylindrical Compressive Strength Limit: 286(N/S) Weight: Approx. 600g / 21.2oz Size: Big Spring: Approx. 5x3.6cm / 2.0x1.4in Small Spring: Approx. 4.5x2.7cm / 1.8x1.1in Package List: 12 x Valve Springs (4pcs/box, 3 Set) Features High quality engine valve spring ensures durability and resistance to wear, providing long-lasting performance for your engine. Exquisite workmanship and high precision allow for optimal flexibility, ensuring a perfect fit for your engine. Beautiful appearance and compact size make these valve springs aesthetically pleasing while still delivering exceptional performance and longevity. The cylindrical design of the valve spring provides stability and safe operation, ensuring easy installation and use. Crafted from high hardness 65 manganese material, these valve springs are strong, corrosion-resistant, and built to last.