The little power hero for the journey! An air pump could not be more practical to fill your beloved Flamingo bath island on the beach. Thanks to its compact size of 11.5 x 10.5 x 10cm , the battery-powered compressor pump fits in any hand luggage. In order for the little compressor to get enough energy to bring your pool animals to life, it needs four D LR20 batteries . The batteries are not included.