This buoy contains a 20-metre length of polyester webbing on a self-winding roll. The webbing is fastened to the anchor crown by means of a shackle and is released gradually according to the depth of the anchorage. Once anchorage done, the buoy floats directly above the anchor. This prevents moorings becoming entangled in the line. If the anchor gets stuck, the webbing can be used to recover the anchor (breaking load 290 kg).