Perfectly balanced. The rolls are truly random no favor to any particular side. Balance as it is meant to be.
I think you made a mistake when you declared the goods or something.
I bought these for my husband for Christmas so he would have something really nice to play with for our upcoming campaign--they're beautiful, a wonderful weight, and just the right color. Purple is his favorite!
The dice are lovely but the chamber didn't come.
Stunning set of dice, beautiful finish and the small details (little gravity dice logo for the 6. and 9.) are great.