a rope or line clamping device , including an assembly of two interfit tubular molded plastic members each having an internal web which are juxtaposed with each other and formed with elongated holes offset from the rotary axis of the members so that the holes progressively become more misaligned upon relative rotation of the members in a direction reducing the overlapping of the two holes . a ratchet mechanism holds the members in any relatively rotated position to hold rope or line segments inserted into the holes clamped together until the ratchet mechanism is selectively released allowing reverse relative rotation . in a second embodiment two sets of smaller holes are provided to separately clamp two rope or line segments .