I. Epicarp is thin.
II. Mesocarp is fleshy and edible.
III. Endocarp is stony and hard.
These are the probable features of

In mango and coconut, the fruit is known as a drupe. In mango the pericarp is well differentiated into an outer thin pericarp, a middle fleshy edible mesocarp and an inner stony and hard endocarp. In coconut which is also a drupe, the mesocarp is fibrous.