Diameter of string: 1.2 mm
Outside diameter: 7.5 mm
Inner diameter: 5 m,Height: 20 mm,Total 9 laps
Nickel plated, better corrosion resistance and surface hardness
Using 45 carbon steel,the best material for spring,with excellent elasticity, fatigue resistance.

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 4 inch
Height : 0.5 inch
Length : 6.2 inch

Item Weight: 0.32 ounce (View shipping rates and policies)
Shipping Weight: 0.32 ounce (View shipping rates and policies)

ASIN : B015CLFIYO