This is a type of 'Full Coverage' bet because it covers all possible combinations of multiple bets from four selections.
There are different types of multiple bets, all with different names, but the Lucky 15 option is a very popular one, particularly amongst horse racing bettors.
It consists of 4 Single Bets, from those four selections they will be doubled up to make a combination of 6 Double Bets, to finish off, they will be divided into 4 Treble Bets as well as 1 Fourfold Accumulator, adding up to 15 bets in total.
A Lucky 15 uses both your acca and your singles as well as producing trebles and doubles that reward you for correctly calling 2/4 or 3/4 of your selections. To cover the 15 separate bets, a Lucky 15 uses your stake 15 times. If you were to place £1 on a Lucky 15, you would be staking £15 in total across the various bets.
Don't worry, the bet is very easy to place with all bookmakers. If you can place a win bet on one horse then you can place it on 4 horses, you simply click the "Lucky 15" option, enter your unit stake and you're done, it's that simple!
But rest assured, if you do have problems, we are always available to help and advise whenever you need it.
Also if you are unsure on your payout at any point you can use an online Lucky15 calculator to calculate your potential winnings.