Sneak Peek: Korelax Inserts
We’ve been working on something new behind the scenes — and we’re finally ready to show it.
Introducing our upcoming Korelax prototype inserts; a modular grip system designed to let you customize the feel of your pen, your way.
Whether you play osu!, draw digitally, or simply want a more comfortable stylus, this is our biggest step forward yet.
What are Korelax Inserts?
Korelax Inserts are small silicone rubber shapes that fit inside the Blueberry grip.
The Blueberry grip acts as a roll-on outer sleeve, which locks every insert firmly in place once installed — creating a stable, comfortable grip that doesn’t shift during use.
This means you can build a grip that matches your preferences for:
- Grip thickness
- Finger support
- Comfort and control
Works With a Variety of Digital Pens
The inserts are designed to work with digital tablet pens, including popular stylus brands including:
- Wacom
- XP-Pen
- Huion
- Apple
If it’s a pen-shaped stylus, there’s a good chance Korelax inserts will suit.
Prototype Giveaway (Limited Time)
To celebrate the reveal, we’re doing a prototype giveaway.
5 winners will receive a full prototype set — the exact set shown in the video.
How to enter
- Follow us on X (Twitter)
- Like the giveaway post
- Repost it
Giveaway details and end date are listed in the post.
Why We’re Building This
We started with one goal, to optimize your grip.
Not just comfort — but grip stability, control, and performance.
These inserts are the next step in that mission:
a system that adapts to the user, not the other way around.
This product is still in prototype development, and we’ll be sharing progress publicly going forwards.
If you want to stay updated on launch timing, testing, and future drops:
- Follow us on X
- Join our mailing list
- Keep an eye on this page for updates