The Darlac Expert Geared Anvil Tree Pruner offers more power with less effort. Quad pulley system reduces the effort by a factor of four – meaning only 25% of the normal effort is required. The rope applies downward force to the tip of the lever arm which in turn mover blade in an upward direction through the ratchet. The toggle is easily adjusted to any point on the rope by moving the locking buttons down and once adjusted moving them back to the top. Use with either DP1560 or DP1570 Expert Oval Aluminium Telescopic Poles.