Watch this visually engaging sensory bubbling gel ooze through the tube. Captivating dripping, bubbling & oozing motion gives off a relaxing and calming effect. Captivates adults and children of all ages. Also great fidget toy for autistic children and children with ADHD. Speed is approximately 15 minutes depending on environment and temperature. Constructed of durable plastic. Available in variety of shapes sizes and speed - for full range search Playlearn ooze tube