Make your party extra special with these light up balloons just simply pull the tag and inflate as normal with air or helium a safe led light will light up the balloonthe light lasts for approx 15 hoursinstructions hold balloon at unopened end pull out flapto inflatestretch balloon before inflatingadults should inflate balloon to a maximum of 10 inches in diameter inflate balloon then place the safety sticker on top of the balloon directly over the area where the light is attachedto def