Questions about STABILO woody 3 in 1 coloured pencil with sharpener

Hello, what is the difference between Stabilo Woody 3 in 1 and Stabilo Woody 3 ind 1 Arty? The description is the same.

I think the difference between Stabili Woody 3 in 1 and Stabilo Woody 3 in 1 Arty are only the different colours (Arty has only 1 green and 1 blue and one white colour).