Written by: Jin Fujisaki / Published: 2026-02-08
You're in the middle of preparing materials for a meeting when you hear that hollow "click" of an empty stapler. You're out of staples. You rummage through the drawer but can't find any spares, and the workflow grinds to a halt.
And then there's throwing away documents you no longer need. Before you can put them through the shredder, you have to painstakingly pry out each metal staple one by one, hurting your fingernails in the process — what a waste of time. Kokuyo's "Harinacs" solves both of these frustrations at once, and permanently. Why? Because this tool does away with the very concept of "staples" altogether.
| The Magic of Binding Paper with Paper, Without Metal
image Bungoten.com
In the category known as "staple-free staplers," Harinacs boasts overwhelming market share and performance. The mechanism is both simple and astonishing.
When you squeeze the lever, a special blade inside makes a U-shaped cut in the paper, then folds the cut-out tab to the back side and instantly locks it in place (the folding method). No metal staples are used at all. It's a brilliant reversal of conventional thinking — turning the paper itself into the fastener. As a result, you'll never need to buy refill staples for the rest of your life. It's the ultimate eco-friendly stationery, with zero running costs.
| Straight to the Shredder. Sorting Hassle Reduced to "Zero"
image Kokuyo
The greatest benefit of Harinacs lies in how easy it makes disposal afterward. Documents bound with metal staples have to have those staples removed and sorted before disposal. But documents bound with Harinacs are "paper only."
You can toss them straight into the shredder feed slot. When throwing them out as burnable trash, no sorting is required either. Whether you're organizing documents at the office or sorting printouts at home, simply not having to remove staples saves a surprising amount of time.
| No Loose Staples, So It's Safe Around Children and Pets
image Kokuyo
In households with small children or pets, a stapler needle dropped on the floor becomes a dangerous weapon. With the risk of accidental swallowing or injury, you tend to be on edge whenever you use one.
But with Harinacs, those worries disappear. Its safety is so trusted that it's adopted in food factories where foreign object contamination is absolutely unacceptable, as well as in medical settings, kindergartens, and daycare centers. The peace of mind that comes from "no staples" brings far more mental relief than you might imagine.
| "Punch Hole" or "Press Fit"? Tips for Choosing
image Yuzawaya
Currently, Harinacs comes in two main types.
- Firm Hold "Folding Type (Handy Type)": Punches a hole in the paper for a rock-solid lock. There's a heavy-duty version that can bind up to 10 sheets, making it perfect for meeting materials and organizing school printouts.
- Hole-Free "Press-Fit Type (Harinacs Press)": Uses wave-shaped ridges to interlock paper fibers and press them together. Since no hole is made, the result looks clean, and you can easily separate the sheets by rubbing the corner with something like a pen cap. Recommended for temporary documents or sorting a few receipts.
| For Those Who Value Efficiency and Safety
image Stationery Specialty Store
This tool shines in scenarios like these:
- Office workers who frequently shred documents
- Parents overwhelmed with sorting their children's school printouts
- People living with cats or dogs who worry about accidental staple ingestion
- Anyone going paperless who still needs paper documents from time to time
| Conclusion: Liberation from a Tiny Piece of Metal
image PR TIMES
It's just a stapler needle — and yet, it's so much more. It's astonishing how much smoother paperwork flows simply by eliminating that tiny piece of metal.
"Bind, dispose, refill." Harinacs strips the "staple" noise out of this cycle. Keep one on your desk and you'll never again cry out, "I'm out of staples!" It's a small revolution, born from the evolution of stationery.
