It is very difficult to mount this shelf so that the angle of inclination to the wall is correct. Requires washers or similar and manual dexterity. For loads greater than 5 kg, I would recommend at least 6 mm, preferably 8 mm dowels, otherwise the shelf will tear the dowels out of the wall again. The material is matt and the finish is so-so. I used it for the garage, where you don't look too closely.