Dozens  Another bet that covers a dozen numbers, these three selections are actually in numerical order. That means 1st 12 is numbers 1-12, 2nd 12 includes 13-24, and 3rd 12 covers 25-36. Each dozen pays 2:1, or double your bet.
First dozen / Premiere douzaine: numbers 1 - 12 (On the French-style mat, the square marked 12P) Middle dozen / Moyenne douzaine: numbers 13 - 24 (On the French-style mat, the square marked 12M) Last dozen / Dernier douzaine: numbers 25 - 36 (On the French-style mat, the square marked 12D)