Tree Runner Super Flex Sidewinder Steel Lanyard 12.7 mm Tree Runner EN1358 15mm Steel Core Lanyard. Tree Runner Super Flex Steel Lanyard 12.7 mm Courant Stileo 12 mm steel static line Edelrid Extreme XP II Steel Lanyard Petzl Microflip Steel Lanyard - EN 358 Camp Cable Adjuster Swivel Hook, EN 358