Find out how to save a choking baby with this new advertisement from St John Ambulance.

Pen lid, marble, princess and jelly baby have had enough of being a hazard and they are here to show you the correct technique to save a choking baby.

Parents told us that over 40% of them have witnessed their own baby choke. And when we quizzed them on the first aid, we found that over four-fifths don’t know what to do in this situation. Starring the voices of David Walliams, David Mitchell, Johnny Vegas and Sir John Hurt, this heart-warming video shows how easy it is to save a choking baby’s life. Please share it far and wide, so that as many people as possible know some first aid.