A consumable bulb. If the holder is hit by a Water-type move, its Sp. Atk will rise.
The Absorb Bulb (Japanese: きゅうこんBulb) is a held in-battle effect item that was introduced in Generation V. The Absorb Bulb raises the Special Attack of its holder if it was hit by a Water-based attack. It can be bought for 32BP at the Battle Subway.