floats, sometimes known as float balls, are spherical, cylindrical and similarly-shaped objects - made from either rigid or non-rigid material - that are engineered for buoyancy in water and other liquids. They are used for surface demarcation, level
measurement, flow control, cable support, and to block UV light. They may also be designed for integration with valve, switch or fluid-instrument mechanical assemblies, to control or monitor liquid levels
and tank volumes.