Use 'crystal clear' to express that instructions or explanations have no confusion or ambiguity.

Clarity in Instructions

'Crystal clear' often signifies that no further clarification will be needed and listeners are expected to understand.

Expectation of Understanding

Use the phrase to emphasize the high level of clarity you have provided or are requesting.

This use of 'crystal clear' applies to objects or substances with a high level of clarity, like clean water.

'Crystal clear' often connotes purity, cleanness, or the absence of pollutants and impurities.

It can be used metaphorically to indicate that something can be seen or understood with great detail and precision.