---
product_id: 41091977
title: "Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB)"
brand: "kokuyo"
price: "¥2317"
currency: JPY
in_stock: true
reviews_count: 13
category: "Kokuyo"
url: https://www.desertcart.jp/products/41091977-kokuyo-campus-smart-ring-binder-a5-light-blue-refillable-binder
store_origin: JP
region: Japan
---

# Holds up to 25 refill sheets 20-hole A5 size precision Smart lock system for secure carry Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB)

**Brand:** kokuyo
**Price:** ¥2317
**Availability:** ✅ In Stock

## Summary

> 📘 Elevate your note-taking game with Japan’s smartest binder innovation!

## Quick Answers

- **What is this?** Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB) by kokuyo
- **How much does it cost?** ¥2317 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/41091977-kokuyo-campus-smart-ring-binder-a5-light-blue-refillable-binder)

## Best For

- kokuyo enthusiasts

## Why This Product

- Trusted kokuyo brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek & Slim Design:** Ultra-thin binder slips effortlessly into your bag, perfect for on-the-go pros.
- • **Smart Ring Lock System:** Innovative lock keeps your papers secure and lets you add or remove sheets with ease.
- • **Customizable & Refillable:** Supports up to 25 sheets with multiple paper styles—tailor your notebook to your workflow.
- • **360° Fold & 180° Lay Flat:** Flip covers back fully for a stable writing surface anywhere, anytime.
- • **Premium Kokuyo Paper Included:** Comes with 10 archival-quality, pH-neutral loose-leaf sheets optimized for fountain pens.

## Overview

The Kokuyo Campus Smart Ring Binder is a compact, A5-sized refillable notebook featuring a 20-hole smart ring system with a secure lock, designed for professionals and students who value portability and customization. Its ultra-thin frosted light blue cover protects your notes while allowing 360° folding and 180° lay-flat writing. Included are 10 premium Kokuyo loose-leaf sheets, with capacity for up to 25 refill papers, making it ideal for organized, stylish note-taking on the move.

## Description

Product description Binder Notebook & Filler paper The Kokuyo Binder Notebook features premium paper for smooth writing without ink bleed-through. Its removable pages and durable metal rings allow easy reorganization. With a sleek, minimalist design and ergonomic build, perfect for both study and work. Folds flat, write freely Folds flat like a magazine, write anywhere with total comfort. No Bleeding, No Ghosting Silky-Smooth Writing Silky-Smooth Writing Experience with No Ink Bleeding or Ghosting - Perfect for Both Sides Use Slim Enough for Every Backpack Lightweight portability meets perfect note-taking size. Know Your Paper: Silky or Substantial? Explore More Products! Bundle & Save! Smart Ring + Lined Paper Smart Ring + Graph Paper 2x2 Ring + Lined Paper 2x2 Ring + Graph Paper 2 Rings + Lined Paper Slide Ring + Lined Paper

Review: I love Kokuyo - It opens fairly easily now that I know how. If I read Japanese I'd have known how not to open it the first time, but no harm done. Translation via Google Lens is really helpful for Kokuyo products. I like being able to fold the covers around back to back for writing to give some stiffness, especially with their small capacity. I also have a Kokuyo 2x2 slim binder. I keep one at home and carry one in my bag and transfer sheets between them as needed. Great paper for fountain pens at a good price, so I bought plenty of filler paper. I like having a spiral notebook I can add and remove pages from.
Review: It's fine - It's fine. You can't really flip the cover around to the back.--it doesn't lay flat. I'd suggest Kokuyo paper and a Muji cover/binder.

## Features

- [Notebook-Like Binder] A5 Kokuyo's Campus Smart Ring binder notebook, 20 holes 8.7x6.2 inches sprial notebook binder has frosted PP light blue cover, and the maximum capability is 25 sheets loose leaf binder papers.
- [Smart Ring System] First, make sure the stopper is unlocked. To take off the lock, place your finger through the bottom hole of the lock and push it out to the left. Once you get stuck here, you may grab onto the bottom tabs on the side and pull those out, then hold the lock and pull it up . Second, open the binder rings, press the plastic button on the top. Third, after you have replaced papers, pinch the rings together, the binder will be closed.
- [Ultra-thin and lock] The thin binder allows you to put the notebook binder into your bag stress-free and save space. Because of the smart ring binder design that is easy to open and close, the slim binder has a lock keeps the rings from accidentally opening, so you can securely carry this notebook in your bag.
- [360 Fold 180 Lay Flat] Great refillable notebook binders for meetings and classes, they not only lay flat for writing, but the cover flips back to save space on your desk. The slightly wider and frosted cover protects the index tabs from damage and makes them clearly visible.
- [10 Kokuyo Original Papers] The Campus notebook binder contains instruction pages and 10 sheets of A5 Kokuyo Campus Sarasara loose-leaf paper, each with 28 lines of 6mm dotted lines. The paper is pH neutral and of archival quality. Notebook-like binders have a maximum capacity of 25 sheets. Kokuyo also offers Grid, Plain and Ruled styles of loose-leaf paper.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BLYJ76W |
| Best Sellers Rank | #120,692 in Office Products ( See Top 100 in Office Products ) #520 in Round Ring Binders |
| Binding | Office Product |
| Brand | KOKUYO |
| Brand Name | KOKUYO |
| Color | Light Blue |
| Customer Reviews | 4.3 out of 5 stars 257 Reviews |
| Item Dimensions L x W | 8.7"L x 6.2"W |
| Item Weight | 0.06 Kilograms |
| Manufacturer | KOKUYO |
| Paper Size | B5 inches |
| Product Dimensions | 8.7"L x 6.2"W |
| Sheet Size | B5 inches |
| Style | Up to 25 sheets |
| Unit Count | 1.0 Count |

## Product Details

- **Binding:** Office Product
- **Brand:** KOKUYO
- **Color:** Light Blue
- **Manufacturer:** KOKUYO
- **Paper Dimensions:** A5
- **Product Dimensions:** 8.7"L x 6.2"W
- **Sheet Size:** B5 inches
- **Style:** Up to 25 sheets
- **Unit Count:** 1.0 Count

## Images

![Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB) - Image 1](https://m.media-amazon.com/images/I/51xxeNMmwrL.jpg)
![Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB) - Image 2](https://m.media-amazon.com/images/I/61Dc0TGk7NL.jpg)
![Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB) - Image 3](https://m.media-amazon.com/images/I/61VZ12XgQGL.jpg)
![Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB) - Image 4](https://m.media-amazon.com/images/I/61pJ4QeJf3L.jpg)
![Kokuyo Campus Smart Ring Binder, A5 Light Blue Refillable Binder Notebook 20 Holes with 10 Extra Loose-Leaf Paper, Up to 25 Filler Papers for Work & Study, Japan Import (RU-SP130LB) - Image 5](https://m.media-amazon.com/images/I/61yT0LBADsL.jpg)

## Questions & Answers

**Q: How many sheets will fit in this notebook?**
A: Short answer: 40 Sheets max. Long answer: It depends on weight of paper. A5 20 Ring filler paper is not that easy to find, but some different weights (= paper thickness) are available from Kokuyo and Maruman. Also too much paper can cause sheets to catch while turning and notebook to not lay as flat when folded back.  I use this for a simple portable notebook and like to keep filled with about 20 sheets of "original" Kokuyo 807BT paper.

**Q: How many pages are in each notebook?**
A: 10 sheets. It's recommended you purchase the notebook refills if you're planning to use the notebook frequently!

**Q: Does it come with some paper?**
A: Yes, it came with 30 sheets (60 pgs) of paper.

**Q: Are these blank pages or lined?**
A: We ordered the lined paper for the A5.  We also have since ordered the B5 and ordered graph paper for it, as well as the lined.

## Customer Reviews

### ⭐⭐⭐⭐⭐ I love Kokuyo
*by L***A on January 14, 2026*

It opens fairly easily now that I know how. If I read Japanese I'd have known how not to open it the first time, but no harm done. Translation via Google Lens is really helpful for Kokuyo products. I like being able to fold the covers around back to back for writing to give some stiffness, especially with their small capacity. I also have a Kokuyo 2x2 slim binder. I keep one at home and carry one in my bag and transfer sheets between them as needed. Great paper for fountain pens at a good price, so I bought plenty of filler paper. I like having a spiral notebook I can add and remove pages from.

### ⭐⭐⭐ It's fine
*by J***T on February 21, 2026*

It's fine. You can't really flip the cover around to the back.--it doesn't lay flat. I'd suggest Kokuyo paper and a Muji cover/binder.

### ⭐⭐⭐⭐⭐ the only notebook you'll ever own
*by O***8 on January 11, 2020*

I saw this in a Japanese based stationary shop and decided to give this a try. I have the larger size (B6?) which is a close size to a composition book ~ if I was in college I would definitely go with the larger size. This size A5 is the size of a 8.5x11 folded in 1/2. This notebook is amazing! I can carry as little or as many pages of paper and I can move it all around (which allows me to group different subjects together ... home remodeling, parent's health care, work and/or children's school related things. You'll only need one notebook since you can always add and remove paper once you purchase the notebook. I don't know why I wasn't aware about this in college. This would be a life changer for me then!!

## Frequently Bought Together

- KOKUYO Campus Smart Ring Binder Notebooks, A5, 20 Capacity, 26 Rings, Light Blue, Perfect for Class or Work, Japan Import (RU-SP130LB).
- Kokuyo Campus Loose Leaf Paper - Sarasara - A5 - Dotted 6 mm Rule - 20 Holes - 100 Sheets
- KOKUYO Campus Smart Ring Binder Notebooks, A5, 25 Sheets Capacity, 20 Rings, Clear, Japan Import (RU-SP130T)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-10*