Pal shelf laquered in 20 colours 90 cm width

What must a shelf look like that is designed to be timeless and durable, that can be assembled without tools and that can be easily expanded with additional shelves? The two young designers Enzo Sundermann and Wladimir Rommel from Münster have come up with the PAL system Rounded plywood shelves are available in coated white CPL, anthracite CPL or matt black HPL as well as lacquered in 20 design colors, the slim-worked bars and angles are available in 20 colors.