40" (1m) Inflatable Ball Hanging Reflective Balloon PVC. How to Inflate. one 40" (1m) mirror ball made of PVC (twin bladders) of your choice of color:gold, silver or multicolor;. The two tiny holes are for releasing air between the inner bladder and the outer bladder (the ball consists of twin bladders), so it's normal if it releases air, but it should stop after a while.
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