use 2*AA size batteries(not included) ,to achieve the best performance ,highly recommended Alkaline batteries . Movie props come with all of the parts you need to assemble by yourself. It can cultivate children's hand eye coordination ability and intellectual development, stimulate imagination and promote their physical and intellectual development. Prank Kit 7 x 1inches rolls can be painted without getting soggy, hot glued, cut to create different designs. Christmas timer toy is ideal use for fun crafts for Sunday/Bible school Building, Constructing Projects, Christmas crackers or small decorations. fake bomb This is a creative clock that can show the time very accurately after a simple setting when power on. And it is a good house decoration to add fun to life.