As light as air but more robust than a balloon balloon balls can be inflated time and again for endless fun inflate using the straw included up to 25cm and the led lights inside will flash whenever you bounce the ball squeeze it throw it bounce it and play after dark with amazing flashing effectsr r led balloon ballcontains rgb led flashing light unitinflates up to 25cminflate again and again for endless fundeflate after useavailable in pink green and blue please note that colours will