This battery air pump isn"t just powerful, it"s portable! It"s lightweight and compact; bring along to the beach or pool to blow up those water toys. (Once you have it, you"ll find many opportunities to use it.) Inflator includes three different adaptor tips to handle any job. Requires 4 "D" batteries (sold separately). Battery air pump measures 4"L x 4 1/4"W x 4 3/4"H