Jopto 10Pcs Black Spiral Spring 5mm OD Light Load Compression Tension Spring Compatible with the Arms of Effector of 3D Printer DIY Reprap Kossel Delta Rostock

• The tension spring with high temperature resistance and good toughness, it's the best choice to spring-requiring equipments.
• The surface of the spring is reinforced to strengthen the surface structure and increase the strength of stress concentration to extend the life of the spring.
• Compatible with most 3D Printer, great for DIY Reprap Kossel Delta Rostock.
• Stiff quality helps your 3D printer much more stable while printing.
• The 5mm OD tension springs can be used for light industry, automotive, machinery, mold stamping, electrical appliances(such as washing machines, vacuum cleaners, electric lights, cars, furniture, 3D printers,etc.).

Features: It can eliminate the internal stress before use and avoid deformation, shortening and fracture of the spring. Make the spring performance more stable. With high temperature resistance and good toughness, it's the best choice to spring-requiring equipments. Great for DIY Reprap Kossel Delta Rostock. Material: Carbon Steel Overall Length: 38.6mm Spring portion: 27mm Ring diameter: 5mm Size: 38.6 x 6 x 6.4mm Weight: 1.4g Package Content: 10 x Tension Springs