Super Anchor Mechanical Rope Grab* This dual cam, heavy duty mechanical rope grab is compatable with 5 8" verticial rope lifelines. * The Super Anchor Mechanical Rope Grab adjusts by squeezing the device and moving it into position, and automatically locks when released. * The device remains in a fixed position until adjusted by the user, and stays locked when the subjected to a fall. * Removable from the end of the lifeline. ** Meets or exceeds all applicable OSHA Standards for rope