I started with buying the "pack" of 4-6in pieces for my 10 gallon set up. I recieved like 9 pieces and it was great. Filled the tank up and looks great. I did boil for an hour, got fresh water and boiled for another hour and am still getting tons of tannins releasing, but I can live with that. So I went back and ordered the bigger one, which after receiving it I now see it says "piece", which that it is. So I guess they technically didn't lie. I guess I was just expecting a pack of larger pieces. I also ordered another "pack" of the smaller ones but only got 3 pieces this time. The wood looks good and so far performs as it should, I just don't know what to expect if I were to order it again.