Titanium is used for the core rod, and the VECTOR “→” design is excellent. Since the vines are made of two pieces glued together, it requires the craftsmanship of carefully carving them out by hand.
The image source is old Thurmont type glasses (plastic eyebrows and metal lower rim).
Designer Mr. Amada says:
By changing the size balance of the upper and lower rims, I was able to create a shape that I was satisfied with. This is a recommended new product.
Size: Lens width 4.8 x nose width 2.3
Color: Light Gray/Lens:Clear
Made in Japan