Boss, I actually posed this question to Steve by PM about 2 months ago and the response "About 4oz." was exactly was Steve replied to me - verbatim. The 4oz bar is roughly (28.35 gr./oz x 4oz = 113.4 grams) and they are noticable smaller than the 200 gram bars I have from 4* and pretty much the same size as the 4oz Wolfgang bars.