Description: Taiwan's newest promoted product! Magic Bra Pad! Increase your cup size as big as you desire. No more airport runways! You can even use it when swimming! There's a pumping device within the bra pad, just squeeze it to the size you desire and place it at different positions along the bra to achieve different results. Deflate it after use. Use the little button at the side of the pump to deflate. See below pictures for clearer explanation.Material: CottonMeasurement: Diameter of 10.8cm