Features Triple attachment points for special rigging applications Hot forged aluminium side plates provide strength and durability Textile friendly surfaces Heat treated stainless steel spindles for high strength and corrosion resistance Pre lubricated sintered bronze bearings for ultra smooth operation Riveted and tamperproof assembly Recommended for arborist and rescue applications Conforms to the following standards: EN 12278:2007 and NFPA 1983(06 ED ) Type L