01
One-touch rolling
No tricky angles. Just roll the sharpener for 5 seconds — both sides of the blade are honed simultaneously.
— IYOYA × Won. Studio
Rolling Knife Sharpener
30 years of Japanese craftsmanship, now in your kitchen. A single rolling motion sharpens any blade to a master-craftsman edge in just 5 seconds. The next-generation sharpener taking Japan and the US by storm.
9,198%
Wadiz Achievement
444+
Supporters
₩45.9M
Total Raised
— FEATURES
02
Master-craftsman finish
Dual diamond wheels designed by a 30-year Ehime artisan. Works on home knives through chef's blades.
03
Safe by design
Blade guard and non-slip base keep your hands away from the edge. Safe even around children.
04
Zero maintenance
Wipe with a dry cloth after use. No batteries, no replacement parts — built to last a lifetime.
— GALLERY
— SPECIFICATIONS
Material
Diamond-coated steel / ABS / TPR
Dimensions
180 × 75 × 65 mm
Weight
Approx. 320g
Compatible blades
Kitchen, chef and paring knives (ceramic not supported)
Origin
IYOYA workshop, Ehime, Japan
Warranty
1-year importer warranty (Won. Studio Korea)
FAQ
Frequently asked questions
The diamond wheel is designed for steel and is not recommended for ceramic blades.
A master-craftsman edge, in your hands.
The IYOYA Rolling Sharpener that hit 9,198% on Wadiz. See the full campaign page and back the project.
PRICE$119