Material: Metal
Color: Blue
Outer Diameter: 40mm
Inner Diameter: 20mm
Length: 50mm 60mm 70mm 80mm 90mm 100mm 125mm 150mm 175mm 200mm 250mm 300mm
Size: Outer Diameter x Inner Diameter x Length
e.g: 20x10x65mm; means Outer Diameter=20mm Inner Diameter=10mm Length=65mm
Features:
Blue spring (Light Load): can be compressed to 52% of the total length.
Made of high-quality spring steel, precision machining, good elasticity, high rigidity and durability.
The surface is reinforced and has a strong structure and long service life.
The shape is rectangular, and the whole is subjected to strong pressure treatment, which is not easy to be deformed or broken.