Wire core flipline (also known as steel core) from Climb Right. Wire core fliplines are very popular lanyard systems because they flip easily around trees, and they offer a higher level of cut resistance as compared to standard rope lanyards. Climb Right wire core fliplines are made with a 16-strand synthetic rope cover braided over 1/4" steel cable and held securely in place with a swagged fitting. Each Climb Right wire core flipline is individually load tested to 650 lbs. These fliplines come with a steel swivel snap on one end. Match one up with a hip prusik or mechanical rope grab, and you have a great adjustable lanyard system.