This products was using fishing only .

Parameters:
Weight: 400g,
Length:100cm,110cm,120cm,130cm,140cm,150cm,160cm,170cm,180cm,190cm,200cm.
Diameter: 10mm,
Style : 4 shark fins( 3 shark fins + 1 rest tab) with 1.2mm thick 85mm length Double flopper
Laser welding of shark fins
60 degree barb
This shaft made by very special stainless steel .It was Heat treated stainless steel ,it is very hard , the hardness is achive
45,Not easily bent or out of shape. It can use for many times .

The shaft is made of 17-4PH stainless steel, which has magnetism due to heat treatment. This is normal. 17-4PH stainless steel has high hardness, corrosion resistance, and will not rust in seawater.Relevant information can be mentioned in Google or other relevant professional papers.It canbe testin seawater to see if there is any rusting issue

(The size of the slingshot is manually measured, with slight errors+-3cm, please refer to the actual product.)

Packing list:Package A: 1*shaft