The First Day of School Brooch

Please Note this is a pre order item and will be made to order in Italy.
This pin is interactive and is made of three acrylic sheets, plus the front sheet that opens thanks to the use of four lateral hinges positioned externally. For some pieces, marble acrylic sheets have been used. The base is transparent. The engravings are filled with acrylic colors. The weight is approximately 40g and the closing support of the pin is positioned horizontally on top. 
Please note that the color of the marble slabs is not uniform, so the shades may differ slightly from those shown in the photos, as they depend on the point of the slabs where the pieces are cut.
The measurements of the pin are:
Height: 7 cm
Width: 5.5 cm