The scratching post is easy to set up. Thanks to two scratch pillars, the structure is very stable, nothing wobbles. The soft cuddly shell was quickly discovered and used by our cats. The shell is very stable and is on the two pillars scratch firmly verschraubtv (tool is not required) The ground are very pleasant for us as the tree visually the apartment is not so "spoiled" as the high almost to the ceiling trees. The cats have fun and use the tree happy and often.