Special Features:

Hexagonal in shape; pink is its normal color turns blue when there is to much humidity.

Properties:

An item which uses the changing color of a desiccant in the presence of moisture to indicate humidity. A number of desiccants are applied in the form of squares, circles and the like, to absorbent paper. Each desiccant spot is generally labeled with a relative humidity value in percentage, an instruction, or some other appropriate legend.