Hulk needs no weapons, only his fists, and here they are in child size. The box holds two of them, a left and a right, made of soft foam. The packaging says as much in so many words: soft foam.
Each fist has a strap inside for your hand to slide through, so it stays put when you swing. It is one size, and it fits most children's hands. There is nothing else to set or switch on: put them on and play.
They belong to Hasbro's Marvel Avengers line and sit in an open box, so you can see straight away what is inside. The box carries an age marking of 5 years and up.
A gift that works the moment it is unwrapped, and at the same time the easiest Hulk costume there is: green fists on, done.