JBL's unique latex formulation and dip manufacturing process delivers radical modulus strength. The power curve increases as bands are stretched for optimum performance. Special anti-oxidants help protect against harmful U.V. rays, prolonging sling life. Wishbones are 302 stainless wires that provide superior strength and durability. 9/16" diameter X 24" (14 mm x 610 mm) long, sling for JBL4D46H, JBL6W46, JBL4D46, JBL4D49, JBL4D24, JBL4D46T and JBL4D46TC (Long) Spear Guns.