Above 1 hour candlestick chart represents the data of EUR/AUD Chart. And Also you can see red and green lines along with this chart, these both lines are placed on round number. Resistance line placed on 1.62600 and support line placed on 1.62000, this is a round number and this is also psychological support and resistance line. Nowadays this round number levels trading becomes very popular in any market because the round numbers are natural levels of support and resistance. But you cannot take trade on each and every round number levels. If you want to trade on round numbers then you need to do some technical analysis of the market, without any analysis you can lose your investment.