Check the listing for details. Korkers TRIPLE THREAT ALUMINUM BAR SOLE - FA3075. Color: Beige, Condition: New with box. Listed at 69.99 USD. The 100% customizable sole that gives you endless spike, bar and hex disc traction configurations for the ultimate in options.Sticky rubber outsole with over-molded threaded stainless steel receptacles to accept our proprietary bolt-on traction enhancement system to mix and match your traction system. Choose one sole with its traction option, then add the components from the other two for a complete set. The 100% customizable sole that gives you endless spike, bar and hex disc traction configurations for the ultimate in options. Sticky rubber outsole with over-molded threaded stainless steel receptacles to accept our proprietary bolt-on traction enhancement system to mix and match your traction system. Choose one sole with its traction option, then add the components from the other two for a complete set. // ALUMINUM BARS provide solid, edge to edge aluminum coverage that morph to surrounding geology for positive grip.