 The float is used to enable the angler to cast out a bait away from the shore or boat while maintaining a reference point to where the bait is unlike bottom or leger fishing.The angler will select an appropriate float after taking into account the strength of the current (if any), the wind speed, the size of the bait he or she is using, the depth the angler wishes to present that bait at and the distance the bait is to be cast.Usually, the line between the float and hook will have small weights attached, ensuring that the float sits vertically in the water with only a small brightly coloured tip remaining visible.