• Using 45 carbon steel, is the best material for spring, with excellent elasticity, and fatigue resistance.
• Nickel-plated, better corrosion resistance and surface hardness
• Rope diameter: 1.2mm, Outside Diameter: 7.5mm, Inside diameter: 5mm, Height: 20mm, Total 9 turns
• Package includes: 20x 3D Power Supply Spring Feeder Accessory

Description:
Product description
Using 45 steel, with excellent elasticity, and fatigue resistance. Nickel-plated, better corrosion resistance and surface hardness.