Requires 4 AA batteries, not included The King Kong Adult Inflatable Costume by Spirit Halloween is a fun and unique addition to any Halloween party or cosplay event. This one size fits all costume features a black color and a detailed design that is sure to stand out. The inflatable feature adds an extra element of fun and whimsy, making it a memorable choice for both adults and kids alike. Perfect for themed events or just looking to make a statement at your next party.