Anchorage mooring buoy

IJINMB5 ANCHORAGE MOORING BUOY
Moorings include:
? an anchor — usually iron weights
? cables — typically made of steel, nylon, or Kevlar
? bottom floats — often air-filled glass balls, shrouded in plastic, which keep the mooring string upright, taut, and off the sea bottom
? release mechanisms — mechanical devices which break the morning chain and allow the instruments to float to the surface upon command by a science technician
? subsurface floats and/or surface buoys — commonly made of foam or other buoyant, non-compressible materials; also used to keep the mooring upright and support instruments

Anchorage mooring buoy