Each player gets a set of 10 dice; 5 of one color, and 5 of another. Each person rolls his dice in pairs, one of each color, and after rolling all 5 pairs he determines which set of 5 dice of the same color makes a better poker hand.
Most of the standard rules of draw poker apply, including betting. The key here is that each pair of dice is always rolled together.
For example, if you have 3 of a Kind with your blue dice, and a Pair with your red dice, you might choose to roll two sets of dice (i.e., a blue die and a red one, twice, but ALWAYS rolling the same two dice of each set together throughout the game), hoping for a 4 or 5 of a Kind. Continuing the example, you might not add to your 3 of a Kind with the blue dice, but maybe you'll pick up a Full House with the red. No problem -- now you're betting on a Full House. You can switch back and forth on the hand you're rolling on (blue dice or red), but you must always keep the individual pairs of dice together.