Alpine, ice, big wall, trad: the 18mm Nylon Runner is a jack of all trades. Simple and bombproof, the Black Diamond Nylon Runner is a go-to for building anchors and extending pieces of protection. The 18mm thickness gives you peace of mind above your gear while reducing tangles while you furiously construct an anchor at an ultra tiny belay ledge. The versatility of these Nylon Runners means you can sling that huge chockstone, girth hitch trees, and tie off chicken heads to your heart's content. Inexpensive enough to leave behind as rappel slings if mountain weather forces an unplanned retreat, the 18mm Nylon Runner is the ultimate in blue collar climbing gear: dependable, simple, and extremely useful.