3D moving sand art picture (also known as a sandscape or liquid motion quicksand ornament). [1, 2]
It features layered colored sand suspended between two glass panes with water and air resembling mountains, deserts, and oceans. It is widely used as a calming, stress-relieving office desk accessory or home decor item. [1, 2, 3, 4, 5]
Common Features & Maintenance
Ever-changing Designs: Each turn creates a completely new, unpredictable visual scene.
Speed Regulation: The rate of the sand's descent is controlled by the barrier of air bubbles trapped inside.
Balance Adjustment: Most models have a small puncture point hidden along the edge frame. This allows you to use an air syringe (often included) to inject or remove tiny amounts of air or water to adjust the flow speed to your preference. [1, 2, 3]