Colors

Size

The eyeglass frames are crafted using a special nail-sandblasting technique. This process involves the use of diamond-tipped needles on a sandblasting machine that rotate and strike the metal surface, creating irregular, shiny indentations and protrusions to achieve a coarse, textured effect.

The nail-sandblasting technique imparts a unique granular texture to the metal surface of the frames, increasing the number of refractive surfaces. Each indentation and protrusion acts as a reflective point, producing a dazzling, starry sparkle effect. The uniquely shaped lenses, infused with glitter, make the glasses shine even more brilliantly in the sunlight, further highlighting GRENA's distinctive design style.