The TMA Slope Indicator is a useful and popular free Forex indicator for the MT4 trading platform. The indicator uses two moving averages and calculates the angle of the slope between them. When the angle is above a certain threshold, it indicates a possible trend reversal. The indicator also provides traders with visual cues, such as a red line and a blue line, to help them identify potential trend reversals. The indicator is easy to use and can be quickly added to any MT4 chart.