By-pass Ear Cuff Sterling Silver Geometric Shape One-Stroke-Line series


Shapes born from geometric single-stroke line

The shape of the ear cuff is created by drawing a single stroke on a square surface.

Everything is connected by one line.

By-Pass[バイ-パス] シルバー925 イヤーカフ 面白いかたち MENTOSEN メントセン めんとせん

It's interesting to see things differently depending on the direction

The maze-like lines are likely to collide, but they do not.

front to back, top to bottom. These ear cuffs allow you to enjoy different looks depending on the viewing direction.

By-Pass[バイ-パス] シルバー925 イヤーカフ 面白いかたち MENTOSEN メントセン めんとせん

By-Pass[バイ-パス] シルバー925 イヤーカフ 面白いかたち MENTOSEN メントセン めんとせん

Contrast between matted and mirrored surfaces

The surface is completely matte.

I am conscious of the atmosphere of industrial design.

In industrial design, you can feel the lifestyle of the people who live there.

By-Pass[バイ-パス] シルバー925 イヤーカフ 面白いかたち MENTOSEN メントセン めんとせん

Gold and Silver

There are two colors, gold and silver.

The silver color is 925 Sterling Silver with platinum-based rhodium coating, and the gold color is 925 silver with K18 coating.

The coating prevents the silver from changing color.

By-Pass[バイ-パス] シルバー925 金色 イヤーカフ 面白いかたち MENTOSEN メントセン めんとせん

The craftsman's final finish is decided

By carefully finishing and polishing the square edges one by one by hand, a sharp line is created.

Ear cuffs are handcrafted with a lot of ingenuity and skill by craftsmen.

By-Pass is the original design of the MENTOSEN logo.

One Stroke Line series

One Stroke Line A series of ear cuffs designed with a hint of "one-stroke drawing".


シルバー925 イヤーカフ Turn[ターン] 立体的カーブ MENTOSEN メントセン


Crun[クルン] シルバー 925 イヤーカフ  立体的 MENTOSEN めんとせん メントセン


Takeshi Uchida is in charge of the production of this ear cuff.
His workshop in Niigata is like a fortress. Everything is designed to work efficiently and perfectly. From high jewelry to silver jewelry, discerning work is born here.

MENTOSEN クリエイター クラフト 内田 岳志 Takeshi Uchida

Takeshi Uchida

Level 1 Precious Metal Jewelry Crafting Skilled Person

〈 Awards 〉
3rd place (bronze medal) Gold medalist of the Skills Competition, JJA Jewelry Design Award Professional category "Excellence Award", "Technical Award", and many other awards.

*This product is sold as one of a pair only. It looks different, but you can wear it on either the left or right side.
Product number SM0001
material 925 silver rhodium coating
weight About 1.9g

Width 10 x Depth 18 x Height 21mm Frontage about 3mm

  • If you make a mistake in your order, we will only cancel or change your order within 6 hours of your order.
  • Unused within 7 days of receipt.
  • Even if silver is coated with rhodium or gold, the color may change after long periods of disuse. In that case, use a silver cleaner to clean it off.
Delivery time

If there is no stock, you can pre-order. The delivery time will take about three weeks.