"Bubble Tube-B" - an air-bubble column with a compressor at the base, filled with water. When connected to the control panel, it is possible to control the lighting system and change the colors, there are 16 colors and a soft white color. It is possible to use the column in therapy in passive and active mode, suitable for children of all age categories and levels of functioning. In passive mode, the child observes the water in the column and this helps to relax and calm the nervous system. In active mode, together with a specialist, you can launch bright toys into the column and watch them, change the color of the column using the remote control, learn to distinguish colors, count and expand vocabulary. In addition, columns are often used in combination with sound therapy. "Bubble Tube" is made of plastic and Plexiglas, absolutely safe and reliable, it is easy to assemble, fill with water and use in any premises for multisensory therapy. Bright colors, soft light, aesthetically attractive design allow you to use them also as a decoration. Children are delighted with such a bright novelty, they feel as if they are in a fairy tale, where they can do miracles, as if by magic, and watch a beautiful picture. Issues that can be worked with: Mental retardation (PD), Mental retardation (RD), Attention Deficit Hyperactivity Disorder (ADHD), Minimal Cerebral Dysfunction (MMD), Visual Impairment, Hearing Impairment, Speech Impairment, Autism Spectrum Disorder, Children cerebral palsy (CP).