These custom watercolor metal boxes are painted with black pink enamel on the outside and white on the inside. Each box has a mixed surface, a lid and a folding palette. There is a thumb loop on the base to hold the box in your hand while sketching.
This metal box with portable lunch is specially customized for a well-known American coffee brand company. It is made of food-grade tinplate and has a thickness of 0.23mm. It is a three-piece, hinged lid structure. The height of the metal box can be changed.