Easy to apply and use: press the button and hold the bubble machine, it will automatically continuously produce soap bubbles. Perfect as a children's day gift, Christmas gift, birthday gift for girls, Halloween gifts, wedding gifts and summer gifts. Summer toys for indoor and outdoor: it encourages children to play outside with friends, enriches children's imagination and improves coordination. Leak-free: no leakage of soap bubble liquid, no more worries about children getting their hands dirty again. Works on 4 AA batteries (not included), contains 1 bottle of bubble blowing solution, 2 packs of soap bubble concentrate, 1 strap, 1 screwdriver. Easy to carry: the large bubble gun can be easily stored, with a detachable carrying strap, so children can take it anywhere, for example in parks, schools, beaches, etc.