I use on my craps table to practice, the casino dice I'm replacing are about 19.1 mm (0.752 inch), the new dice measure 0.771 or closer to 19.6 mm. They are evenly matched and identical weight.I got some from a different source that were not matched, not only off die to die but side to side and also spot to spot when measured on the same side. The claim was precision casino dice.
Rating: [4 of 5 Stars!]