Utilizing the world's first patented technology, the thickness of the oxide layer on the surface can be controlled to an advanced level, enabling a rich breadth of color expression on stainless steel.

In addition to the superb coloring, processes that heighten corrosion resistance and antibacterial/ antiviral/anti-allergic features have been added, dramatically enhancing the product's value.

On the cap and barrel, we have employed a special stainless steel coloring technology that is excellent in consistent expression of refined color shades, and also gives colors a range of change in tones depending on lighting and angle.

NIB: 21K Gold with Black Ion Plating F/M/B

Cap / Barrel: Colored Stainless Steel

Gripping section: Bs / Black Ion Plating

Metal parts: Black lon Plating

Cap Top / Barrel End : PMMA Resin Size: 17x133.3mm (including clip)