If you are using a traditional loop-based friction hitch system as opposed to a split tail, the Sirius Loop 60 makes configuring your system easier and safer - no more double fisherman knots. Constructed from a 600 mm length of extra tough 10 mm Sirius friction cord, factory stitched into a continuous loop by Teufelberger in Austria to Treemagineers specifications making it more reliable and compact than conventional knots. Teufelberger Sirius is a braided polyester kernmantle friction cord - abrasion-resistant and flexible at the same time. The breaking strength of the Sirius Loop was determined using the testing method to EN 566.