This is the JBL XHD 9/32” Extra Heavy Duty Slide Ring Warhead Slide Ring
Fits JBL Spear Guns with 9/32” (7mm) Shaft and Warhead Spear Tip
17-4 Spring Stainless Steel
Diameter: 9/32” (7mm)
Prevent Loss of Spear Tip
Adds Shock Absorption
Slide ring is made for use with the JBL Spear Guns equipped with the warhead spear tip.