DIY Kossel delta Rostock Push Rod Spring (Pack of 2) Lightweight spring very easy to install to your projects ready to use small in size.

A metal wire spring that functions in a spring mechanism that compresses, extends, rotates, slides, pulls, and exerts force when an equal or greater force is applied. A spring mechanism can exert pressure, rotational force, or pulling strength in a variety of ways

Features: 

1. Color: Black
2. Material; carbon steel
3. Length: 4cm
4. Diameter: 6mm
5. Light weight
6. high strengt