Twenty one-yuan coins were about four centimeters thick.
The weight was also much heavier than the copper coins.
According to the measurement method, a copper coin was about only 3 grams.
Even if it was a fake one, the weight wouldn't make much of a difference.
However, the one-yuan coin had a steel core and nickel with a diameter of 25 mm and a thickness of 1.85 millimeters, weighing at 6.1 grams.
It meant that the weight of a one-yuan coin was equivalent to two copper coins.
Twenty one-yuan coins were equivalent to forty copper coins.
However, Fang Qiu didn't care about these detailed data but did feel it was much heavier when he held the coins.
After tying the coins, Fang Qiu began to use his mental power to try to manipulate the coin.
Unexpectedly, the coins didn't mo
