Colour change lighting, bubbles, balls and swimming fish makes it ideal for any classroom or sensory zone. Suitable to place on a floor. Special pack comes with fish and balls. Whether it is in a calming room or an interactive room, the array of changing colours and moving bubbles gets everyone attracted to its relaxing effects. Be mesmerised by the fish and balls. Popular for those with Sensory Processing Disorder (SPD). Creates a positive response when watching bubble tubes in action. Provides a tracking activity that helps to improve visual development and communications skills. Bubble tube is 10cm in diameter. We strongly recommend to make your bubble tube as stable as possible please use a bracket, available separately.