Kokuyo
Precision on Display
Behind the Design
Some of the most fascinating parts of a stationery tool are the ones you rarely see. KOKUYO's TRANSPARENT MECHANISM series brings those hidden details into view, transforming springs, gears, and moving components into part of the design itself.
Rather than concealing how each product works, the collection celebrates the engineering behind everyday essentials. Transparent bodies, carefully placed color accents, and clean forms invite you to appreciate the precision behind every click, cut, and movement.
By revealing the mechanics instead of hiding them, the TRANSPARENT MECHANISM series offers a fresh perspective on familiar stationery.
Choose Your Style
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Kokuyo Transparent Mechanism Complete Bundle White
Regular price ¥8,100Unit price /Unavailable -
Kokuyo Transparent Mechanism Complete Bundle Black
Regular price ¥8,100Unit price /Unavailable -
Kokuyo Transparent Mechanism Complete Bundle Red
Regular price ¥8,100Unit price /Unavailable -
Kokuyo Transparent Mechanism Complete Bundle Green
Regular price ¥8,100Unit price /Unavailable

Harinacs
Staple-Free Binding
Bind up to five sheets without staples. No refills required, and papers are easier to recycle.

Hako-ake
2-in-1 Design
Switch between two modes with
a simple slide.

Dotliner
Instant Adhesion
Apply adhesive instantly with no drying time, sticky residue, or wrinkled paper.
More From Kokuyo
From notebooks to office essentials, KOKUYO has been shaping everyday stationery since 1905.
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Campus Notebook Animal Grid Set
Regular price ¥4,000Unit price /Unavailable -
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Regular price ¥1,200Unit price /Unavailable
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HAKO-AKE 2 Way Scissors / KOKUYO
★★★★★(1)2 colors available
Regular price From ¥2,150Unit price /Unavailable -
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Join the Bungu Experience
Shopping from the Bungu store was super easy. After I learned about a product I wanted, I had it ordered quick & easy. It shipped pretty quickly, despite Silver week in Japan, and arrived without issue. Their packaging is such a nice touch! I almost didn't want to unwrap it. I enjoyed the entire experience and will order from Bungu again!
Chase F.
October 1, 2026
I am so impressed by the care and attention Bungun uses in their shipping. I ordered several inexpensive KOKUYO notebooks which came wrapped in a beautiful furoshiki. What an absolute treat. The special edition post card adhered to the bottom of the package was also such a nice, and yet unexpected, gift which went immediately into my planner. Honestly, opening the box was as much a pleasure as using the products inside. Thank you so much for your dedication to this level of customer service, I believe you truly stand alone.
Raymond A.
September 18, 2026
I have bought from Bungu on six different occasions, and I have loved the experience every time! The website is great, and the support (if you ever need them or have questions) is incredibly quick, helpful, and polite. Order turnaround is highly efficient, and my packages always arrive at the earlier end of their delivery estimates. The furoshiki is beautiful, and the postcards are delightful. I couldn't recommend Bungu highly enough.
Ayra
June 13, 2026
I've been a fan of Bungu's Instagram channel for ages, but this was my first time buying from them. I loved the experience. The shipping was surprisingly reasonably priced. The books came wrapped in a beautiful cloth furoshiki (with a little card and QR code explaining how to use furoshiki), along with a bonus greeting card tucked away in the bottom of the box as a delightful surprise.
JP
May 23, 2026
I found out about the writing utensils from a YouTube influencer about two months ago who seemed impressed with the quality of their products and this company. I am a longtime subscriber so feel comfortable with their recommendations. Bungu's website is easy to navigate and understand, as is their ordering system. The delivery was timely. The packaging was lovely.
Deborah G.
May 13, 2026

Packaging That Reflects Our Values
Every order is carefully packaged to reflect our commitment to quality, presentation, and sustainable choices. Complete with complimentary touches, orders also include custom-designed furoshiki and an original, seasonal postcard.
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Zero Surprise Fees
All duties and taxes are calculated at checkout
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Craftsmanship
Rich Japanese culture and excellent craftsmanship
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Express Shipping
Enjoy free express shipping on eligible orders
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Happy Customers
4.9 stars from 8,000+ reviews