Rezi One: A Utility Knife That Never Injures
Hello everyone,
we are the IDEAEDC team. In the past, we have always focused on product creativity, design details, and strived to create practical and interesting products. We have successfully carried out 4 projects.
Now, we have established a new design team and created this official account. This time we will bring you our latest research results!
A long-standing safety concern
We rely on cutting tools every day — yet they’re still a common cause of injury.
- Forgot to retract the blade?
- Accidentally touched the edge?
- Struggled with locks and awkward mechanisms?
As user habits evolve, so do the tools we rely on — constantly upgrading to eliminate redundant actions, boost efficiency, and minimize the chance of mistakes.
That’s exactly why Rezi One exists — to end the hassle, once and for all.
🌟1. Rezi One. Everyday safety, by design.
Done using the knife, but forgot to close it? Left it open on the desk by accident?
One accidental bump, and the knife drops — blade down — onto the floor… or worse, your foot.
The knife next to your phone was left open—and just then, the phone rings.
Many knives can accidentally open while clipped to your body
Rezi One completely eliminates these dangerous moments！
It’s a lock-free, auto-retracting safety knife designed for high-frequency use.
No more worrying about the blade slipping out. No more remembering to retract it.
After every cut, the blade automatically returns — reducing the risk of accidents and boosting efficiency.
✂️2. Cut the extra steps. Work more efficiently.
Rezi One auto-retracts. The blade only comes out when you press—and instantly returns when you release.
No lock needed.
No forget to retract the blade.
No excess motion.
🧩3.Patented design. One push. New blade.
To make blade changes even more convenient, we designed a one-touch replacement system — no disassembly needed, just swap and go.
- 1. Push the button all the way forward.
- 2. Gently ease off pressure with your thumb.
- 3. Pull out the old blade and insert a new one.
- 4. Press the button to let it retract — and you're done
✅4. A revolution in cutting tools——Rezi One.
As user habits evolve, so do the tools we rely on — constantly upgrading to eliminate redundant actions, boost efficiency, and minimize the chance of mistakes.
Rezi One is like the shift from manual to automatic — a smarter, safer evolution.
- 🔁 Auto-Retract
The blade instantly retracts after each cut — no manual action needed, reducing the risk of accidental injury. - 🔒 Lock-Free Design
No lock means no risk of forgetting to retract or leaving the blade partially open. - 🧠 Simplified Motion Logic
Press, cut, release — only the actions you truly need. - 🧰 Industrial-Grade Design
Compact structure and solid grip. Perfect for offices, warehouses, makers, and more. - 🧼 Safe & Replaceable Blades
Compatible with standard utility blades. Cost-effective and easy to maintain.
In our design philosophy, tools should never become a burden — they should feel like a natural extension of your movement.Rezi One isn’t just a utility knife; it’s your commitment to efficiency, focus, and safety.
Solid TC4 titanium. Lifetime durability.
We’ve chosen to go all-in with premium titanium — every single component is made from high-grade TC4 titanium alloy.
It’s built to last a lifetime, with a permanent warranty and material that will never degrade.
👨🔧 5. In Everyday Situations
Whether you're a warehouse pro, a designer, an artist, or just someone who opens a lot of boxes—Rezi One is designed to keep you safe and efficient.
📏6.Specifications
📦 7. Rewards
🚚 8.Shipping
After the project is successfully funded, we will send the survey through the pledge box and charge the shipping fee on the pledge box.
The basic shipping cost is 6-8 USD. After the project is completed, we will calculate the final shipping cost based on the accessories you purchased and send it to you for confirmation through survey. The maximum shipping cost will not exceed 12 USD.
Usually we will send the survey within 14 days after the fundraising is successful, and ship within two months after the fundraising is successful.
🧑🎨 9. The Story Behind Rezi One
When I first encountered a knife at work, I was simply holding a sample and inspecting it — and I accidentally cut my hand on the exposed blade. It really scared me. For a long time after that, I was afraid to even touch knives.
Around the same time, a client of ours also got injured by a folding knife due to improper handling. That incident only deepened my fear of knives.
At one point, I didn’t want to design knives anymore. But my job required me to keep working with them, so I started wondering — is it possible to create a knife that actually feels safe to use? One that reduces, or even eliminates, that fear?
I realized that the act of cutting only takes a moment. So what if the blade could stay hidden the rest of the time? What if the knife was always in a "refuse to open" state by default?
That’s how the core idea for Rezi One was born.
And while I was at it, I redesigned the blade replacement system too — no disassembly needed, just a single push to swap blades.
With that, a safer knife finally became real.
