People think that they are fun to play with sucking in helium from them but they are not toys They are plastic bags with dangerous chemicals floating around in them that can sufficat you and kill you. Several people lost their lives playing with them two kids just recently died inhaling helium they were found with the balloons over their heads they suffocated trying to do squee voice's but doing it causing damage to your body doctor's always warm people not to do these but people don't want to listen this goes back decades of people inhaling helium these maylar balloons also can explode when next to candles or some sort of heat especially being outside in the heat so you shouldn't be inhaling helium at all