It consists of a lower low followed by a point that is unable to make a lower low, after that price will startmaking higher lows instead of lower lows.This is a sign that the down move is over and price has the potential to reverse to the upside.This pattern usually occurs after price form a descending channel , we wait for a breakout of the descending trendline as well as the resistance level that will become future support and then we wait for a bullish corrective structure such as ''Flag/ Wedge /Triangle'' to buy on a breakout.