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Madbull Hard Coated Non-Linear German Piano Wire Spring - M120 (Green)

After 6 months trial and error, we finally made the most "colorful" set of AEG springs.

(The color is not painted. It is hard-coated by special process.)

Calculated carefully by computer and tested by over 100000 times.

Our spring has been proofed that the length and force are still consistent. (See here)

We just want to proof that our spring is not just a "spring". It is a MadBull spring and it is "colorful." 

Other features:

  • Consistent >100000 shotsl 
  • Non-linear design (calculated)
  • Color coating to reduce effects from environment
  • Design & Made by experienced engineers.
  • Premium quality German piano wire
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