Do you think that these gold bars are legit? then how could they sell them for $26 bucks

My son bought one and it says that it is 9999 pure 24k gold 1 troy ounce it says so on the bar itself.... He tried to place a magnet on it and it didn't work, he compared it to his legit mint gold coins and it looks just like them and so we think it is real...so we bought a few more last night.