THUNDERBRAID 550M ** LAST ONE **Thunderbraid 550m roll ** LAST ONE AVAILABLE ** Once it's gone, it's gone. The Thunderbraid features a combination of tinned copper and stainless steel, which provides superior conductivity and strength, resulting in better power transfer and longer life. Robust Uv Stabilised Premium Product Colour white blue yellow Diameter 3. 5mm Super conductivity with a combination of (Cu) Tinned copper and (ss) Stainless steel wires 550m roll (400m + 150m Bonus