Yves Empire USA Billiard Exclusive Replacement 8 Ball Set, 2.25-Inch One of our best quality billiard 8 ball, made by high quality resin, each ball are polished to perfect balance of roundness; Each ball are made to 2-1/4" which is the standard size worldwide Made by high quality resin, Each ball are made to 2-1/4" which is the standard size worldwide Each ball are made to 2-1/4" which is the standard size worldwide