cylindrical tubes

A cylindrical tube is a three-dimensional object with a circular cross-section and straight sides that extend vertically, resembling a hollow or solid pipe. It has a consistent diameter along its length and can be used to contain, transport, or contain fluids or objects. Think of it like a long, round tunnel or a hollow roll — with walls that are usually uniform in thickness. Cylindrical tubes are common in engineering for piping, structural supports, and various containers due to their strength and efficiency in handling internal pressures.