JBL's unique latex formulation and dip manufacturing process delivers radical mo dulus strength. The power curve increases as bands are stretched for optimum per formance. Special anti-oxidants help protect against harmful U.V. rays, prolongi ng sling life. Wishbones are 302 stainless wires that provide superior strength and durability, Available in different length sizes. Sling makes a great Save-A-Dive Kit item.