Description: Teufelberger Sirius Rigging Line 14mm. Sirius Rigging Bull Rope has been a must-have item in the world of tree care. Arborists in Europe are more familiar with this line than here in the states. The 32-plait polyester sheath makes Sirius highly abrasion resistant and easy to knot. With its high quality kernmantle configuration, the Sirius Bull Rope offers excellent value for money and therefore represents a cost-effective alternative. Unique to Sirius rope are the overload indicators where strands set at regular intervals in the rope which show when the rope has been subjected to overload.