The shelving system is assembled in no time, no screws, cordless screwdriver or other aids necessary. In the delivery a cute mallet is attached, but I did not need him. The only drawback, though I really conscious all assembled very slowly and carefully, the doors are not properly indoors everywhere evenly. Madness how much storage space have this 4eckigen boxes. I Mean while 2 of them and ask myself whether I still get one for bathroom. A more favorable shelf with doors, I have never found otherwise. Price / performance ratio was totally