Expansion Spring Wire Diameter 0.3/0.4/0.5mm Tension Extension Expanding Spring Product Information: Model: Expansion Spring Extension Expanding Spring Material: Stainless Steel Wire diameter: 0.3mm 0.4mm 0.5mm Outer diameter : 3/4/5/6mm Length : 10mm - 300mm Note: due to the differences in shooting scenes and technology, there will be a chromatic aberration between the photos and actual colors. Specifications: wire diameter d * outer diameter D * total length L (mm) For example: 0.3*6*100mm means: wire diameter 0.3mm (steel wire thickness) * diameter 6mm (spring outer diameter) * length 100mm (total length)
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