Rope Logic's SafeBloc Tenex Sling 16ftThe future of rigging is here, brought to us by David Driver of X Rigging Rings. SHERRILLtree and David worked together to develop a revolutionary friction tool for rope rigging work called, SafeBloc. SafeBloc is a triple hole thimble that adds friction in the rigging system to the top of the tree, thus adding safety by reducing rigging point stress, compared to a system that uses a block or pulley. Also, with the benefit of friction, the climber can