The game of roulette is normally played at an elongated table. At one end is a wheel, with a notch in the table for the dealer to stand at. The surface of the table is covered with a felt layout with boxes for the numbers 1 through 36 arranged in three columns of twelve. At the end of the portion of the layout that is nearest to the dealer, above the numbers 1, 2, and 3, are boxes for 0 and 00. Each of the numbers from 1 to 36 is surrounded by either a red or black oval or rectangle. The 0 and 00 have green backgrounds. This rectangular grid, with a box for each number, is used for what you call “inside bets.”
Other than the numbered boxes are a couple of other boxes for “outside bets,” encompassing up to 18 numbers at a time. Most of the areas for outside bets are on the long side of the table across from the dealer. Lastly, at the end of the rectangle away from the dealer are boxes for bets on each of the three columns.
The roulette wheel has 38 numbered slots, each with the same colored background as the corresponding number that is found on the table layout. The small, hard ball used to be made of ivory; now it’s most of the time made of plastic. The dealer spins the wheel in one direction, then throws the ball in the opposite direction around a track on the bowl-shaped recess that holds the wheel. When the speed of the ball decreases, it falls from the track toward the wheel itself, and bounces around until it falls into a numbered slot.
Roulette is purely a game of chance, and no style of betting, money management, or careful observation will help you win every time. Everyone who have tried it failed. You must not forget that the roulette wheel is 100% random.