You can put it on the bedside table and turn on its light at night, with the bottom light slowly extending upwards. Watching the sand slowly flow down helps you fall asleep and releases the pressure of the day. With three light adjustment modes Warm light, natural light and cool white light. Use soft light, do not hurt the eyes.Using usb interface, button control, switching the light mode only needs to turn on and off the button! How to Adjust Bubbles? Turn the sand painting to make the bubbles move near the air hole and make sure there is no sand near the air hole. Insert a syringe into the air hole to adjust the bubbles.(Sand falls too slowly: pump out some air bubbles; Sand falls too fast: add some air bubbles) The colorful world of moving sand art The art of flowing sand is constantly changing. Every time it flips and falls, it creates a new calm and charming scene, such as turbulent waves, or streams and mountains. Upgraded wooden base The product adopts an upgraded wooden base, which is stable and safe and not easy to dump.The appearance is exquisite and looks very textured. Instructions for use Place the sand painting on a shelf for at least 30 minutes.Just hold and shake it gently left and right for a while, so that the air bubbles inside become small bubbles, then turn it over to let the sand slowly flow down from the small bubbles.After the sand has completely fallen, keep it on the shelf for at least 30 minutes, then turn it over. Note: It is normal for some bubbles to get stuck. Because the buoyancy of the bubbles is balanced with the gravity of the sand, but the situation rarely happens. It makes people feel like they are in the babbling water, which can relieve fatigue, relax and inspire.Watching the healing quicksand painting help you fall asleep and relieve the stress of the day. Sand painting will bring you a calm, natural and wonderful feeling. Everything is quiet and the mind is healed. Parents can slowly turn it with their children and feel the ever-changing physical charm of the sand painting landscape. Have a relaxing and enjoyable parent-child time with your children.