This product is mainly used to study the basic physical concepts and principles in fluid statics, such as density, specific gravity, viscosity of fluids, Pascal's law, Archimedes' law, etc. The device adopts a desktop design, comes with a built-in water tank, and does not require external water supply; The equipment can conduct a wide range of experiments, including buoyancy, pressure center, Bourdon tube pressure measurement, and force stability research.