For shelf minimum 16 mm thick (panel or wood). The particular shape of the components guarantees the locking of the shelf and, therefore, the transportation of the furniture with the shelves already assembled. It consists of a plastic sleeve with a spring inside, which clicks the pin in and out. As for the installation,also the disinstallation does not require the use of any tool, as it is simply carried out by sliding the clip backwards. In ccordance with the European regulations UNI EN 14749/05. Recommended load capacity (Width x Length, mm - Max. shelves Weight) 300x600 mm - 32; 300x800 - 28; 450x600 mm - 30; 450x800 mm - 25. Easily variable shelf height.