-Material: 65Mn spring steel.

-Wire diameter=2.5mm .

-Outer diameter D=13mm 14mm 15mm 16mm - 25mm.

-length L=45mm 50mm 60mm 70mm 80mm- 250mm.

-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.