Regal fulfilled its purpose perfectly. In total there are 24 pull screws, all self-explanatory. After screws 15 minutes is the shelf. Included is also a wall mount that I need but not with us due to the installation site. The shelf is stable, and makes processing a technically solid and durable impression. For the offered price, there is not even a box stand for 3 boxes ... The delivery arrived quickly at the local hardware store! Thanks for that.