1 Automatic Bubble Machine: This new rainbow bubble machine is fully automatic, the most popular children s bubble machine, with 2 bubble bottles (about 50 ML) and 1 strap, suitable for 3 years old and above girls and boys outdoors. 2 Durable and High Quality ABS: This rainbow bubble machine is made of non-toxic ABS material for children, with excellent toughness, safety and environmental protection, suitable for children over 3 years old, durable and will not harm children, pets and adults . 3 Leak-proof Children s Music Bubble Machine: This professional music bubble machine is equipped with an independently sealed bubble solution device, which can effectively prevent the solution from leaking, without worrying about the liquid escaping. Powered by 3 AA batteries (not included) and comes with a beautiful adjustable lanyard, it s super portable, so your kids can enjoy themselves with your pets this summer in a sea of melody bubbles of great music.