More commonly known in the UK as slings, the Black Diamond Nylon Runners are a must for any trad climbers rack. Runners are frequently used for setting up belays and extending gear placements on twisty routes to reduce rope drag. This particular model has been made with nylon webbing making it strong and incredibly durable. These runners are also great for setting up a slackline in your local park, just remember to use something with them to protect the trees. Black Diamond 18mm Nylon Runner Features: 18mm Nylon Colour Specific to Length Strong and Versitile Very Durable Length: 240cm Weight: 130g