These are not pencils for writing memoirs or taking scientific notes. Made by Caran d’Ache, the graphite core is water soluble. Like watercolour paint, the graphite dissolves when wet, becoming another type of medium, while remaining graphite.
The pencils, in HB, B, and 3B, have the bar code attached to a removable plastic piece:
The pencil is exceptional in appearance, with a beautiful and simple gold imprint on a matte black background. An easy sharpening cedar pencil, it really has the feel of a quality art supply.
The brush icon indicates that this is a water soluble pencil:
The cap is glossy:
I am not an artist! But even as a backyard doodler, I can see that these pencils are both capable and fun. Going over a drawing with a fine brush dipped in water unleashes nuances and shading capabilities that would be challenging to achieve with regular pencils. Or at least for me they would be!
Maybe you have tried them, or a similar product?