Dr.GRAMs glasses weigh only three grams which is lighter than a piece of
A4 printing paper.
Along with its lightness, they are flexible and comfortable.
The flexibility and comfort was obtained through the hinges, in a shape of
warp and weft, which intersects each other up and down without utilizing
screws or wielding

Dr.GRAMs glasses use titanium oxide films to apply various colors to any parts of the glasses and different parts can be assemble to form a customized eyewear.

The colors are applied to titanium using an electric current, without the use of a chemical dye, to generate an oxide film on the surface.
These oxide films, unlike typical color coating technology, help preserve density and sturdiness of the glasses structure, and has negligible impact on environment