A free spin bonus is a type of bonus that casinos offer to their players in order to get them to sign up or to keep playing at their casino. These bonuses usually come in the form of free spins on certain slots games. Free spin bonuses are a great way for casino players to try out new games and to win some real money without having to risk any of their own money.
Most free spin bonuses come with a wagering requirement, which means that you will need to playthrough the amount of the bonus a certain number of times before you can withdraw any winnings. This can be a bit of a pain, but it is worth it in order to get free spins on some of the best slots games around.