Russian pyramid and kaisa have a size of 68 mm ( in). In Russian pyramid there are 16 balls, as in pool, but 15 are white and numbered, and the is usually red. In kaisa, five balls are used: the yellow (called the kaisa in Finnish), two red object balls, and the two white cue balls (usually differentiated by one cue ball having a dot or other marking on it and each of which serves as an object ball for the opponent).
R:ussian pyramid and .kaisa have a size of 68 mm ( in). In Russian pyramid there are 16 balls, as in pool, but 15 are white and numbered, and the is usually red In kaisa, five balls are used: the yellow (called the kaisa in Finnish), two red object balls, and the two white cue balls (usua.lly differentiated by one cue ball having a dot or other marking on it and each of which serves as an object ball fo:r the opponent)