It’s certainly fun to play with bubbles as a child or as an adult but as a child with special needs bubble machines provide children with a whole new sensory experience! The Sensory Bubble Wonderland Machine makes for a great sensory experience for any child with brightly reflecting bubbles and the soft texture of bubbles falling on the skin! This bubble machine is even great for party fun! The Sensory Bubble Wonderland Machine takes any bubble formula – you can even make your own! and it requires 4 ‘C’ batteries to run which are not included.