Industrial quality fuel pincher.
Works perfect for any type C/L combat model. Nickel plating is to make sure the fuel flow cut-off/release is fast and no damage to silicone fuel line.
The material is high carbon steel solid wire, nickel plated, which makes the device corrosion resistant, quick and smooth fuel line squeeze and just gives the model very nice and professional look.
The wire diameter is 1.7mm (0.067")
Weight is 1.5 gr (0.053 oz)