Automatic Silent Bubble Machine for Kids---This easy-to-use rainbow bubble machine requires 3 AA batteries (not included). Simply press the button to unleash a flurry of colorful bubbles and bright lights. The machine generates over 2,000 colorful bubbles per minute, almost silently, allowing kids to immerse themselves in a dreamy bubble-filled world. It's sure to capture children's attention and excite kids and pets alike. Easy to Carry and Leak-Proof Design---The Rainbow Bubble Maker measures 12.5 x 5 x 13 cm and weighs 320 grams. Each children's bubble machine comes with an adjustable strap that can be customized to the perfect size. The completely sealed design ensures excellent sealing and low weight. Kids can carry the bubble machine on their back, spraying happy bubbles all the way, running and playing without worrying about bubbles spilling out. ABS Material: Safe and Non-Toxic---This wonderful bubble machine is made of child-friendly, non-toxic ABS material, safe for children, infants, and toddlers. It's stable, safe, and stylish, providing long-lasting fun with a single purchase. It meets US toy safety standards and has passed CPSIA, ASTM, CPC, and other safety certifications. The smooth surface design ensures a comfortable and safe grip for little hands. Perfect Gift Ideas---Our automatic bubble machine boasts a unique cloud-shaped design with bright colors, a soft touch, and a cute shape. Boys, girls, and preschoolers will be thrilled when this bubble machine starts up. This is definitely a fantastic birthday gift for little ones aged 3-8, a fun Easter present, and a great Christmas gift – the perfect outdoor toy for kids.