ISC REFLEX Mechanical Hitch (New)FOR PRE ORDER. The next batch will be ready to ship by the MID SEPTEMBER. The ISC REFLEX Mechanical Hitch is a revolutionary climbing device that combines the familiar feel of a hitch based system with the versatility of a mid line attachable mechanical device. Say goodbye to threading full rope lengths through your system with REFLEX, you can install or remove the device mid line, even with ropes that have large stitched terminations or traceability