Yves Empire USA Replacement Crazy Cue Ball, 2.25-Inch One of the billiard crazy cue ball, this special cue ball has a random center point and will roll randomly; It is great for games, party and have more fun 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