Wherever anchors are used this buoy is required gear. As the anchor is dropped, the tripline Anchor Buoy with its 100ft. line goes with it One end of the buoy line is attached to the trip shackle of the anchor the buoy rises to the surface, unwinding as it rises. At the surface it is tied off in the cleat that is built into the buoy marking the anchor spot and ready to trip the anchor when needed. The buoy is manufactured of the toughest resilient foam available, bright orange in color complete