-Material: 65Mn spring steel

-Wire diameter=3.0mm 

-Outer diameter D=16mm 

-length L= 100mm

-Size: Wire diameter*Out Diameter*Length

-Nternal Diameter =Out Diameter - 2 * Wire Diameter 
 
 -( For example ，Size 1.4*14*220 mm，means the wire diameter is 1.4mm,the out diameter is 14mm, the length is 220mm,the
 
Internal Diameter is 11.2mm.)
 

 -The Length includes the hook 

 

-Package Include:According to your Choose.