The ZTD-SP tool is a Stainless Steel plier tool designed for closing Zippertubing D-Track-LT products. It has two roller wheels which engage under the external ears of the D-Track-LT extrusion. Squeezing the handles drives the interlock mechanism together and as the operator pulls the tool along the cable the D-Track-LT jacket forms around the cable harness and is snapped together to form a continuous tube.