Double Ball Roulette launches two balls during one spin, producing two winning numbers. Its betting opportunities and settlement table are designed around that paired result. A guide for one-ball roulette cannot be copied unchanged because covering one of the two numbers is not the same condition as satisfying a bet involving both. The live dealer uses a dedicated launch device, while the two ball landings determine the round. Check each bet's required combination before comparing its payout with a conventional number wager.
To compare related live casino formats, read the rules of XXXtreme Lightning Roulette and Gold Vault Roulette.
The library also explains roulette wheel formats and multiplier rules to help put these mechanics in context.
Source: published game information.