The bosses among the boards and and with an edge length of 1.50 m can’t be over-looked. Nevertheless, the flat boulder ele-ments are very easy to maintain when setting routes. They do not stand out from the wall and thanks to the similar angles, they suit the other boards. This allows you to bolt the asymmetrical and mirrored objects together with wood screws as you like. For example, to model the wall, to walk over or hang.