The TFH Budget Hurricane Tube is the answer to wanting a maintenance-free bubble tube at an affordable price. Our unique design uses the same durable acrylic tube but with no water which means no maintenance. The inner tube funnels the specially coated styrofoam beads up through the tube simulating the calming effects of water. The LED light smoothly transitions through the colors maintaining focus and attention. This tube has a jack for a 1/4" Switch which will stop and re-start the fan. Switch sold separately. Being 48"H and only 4" in diameter, it is perfect for any classroom, clinic or bedroom. Adult supervision is recommended.