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Quantity
1
Reverse knuckle roller design enables slow, methodical motion and high-speed rotations for versatile tactile engagement
Center indentation and rim provide enhanced control during grip changes and momentum-based movements
Available in multiple materials including metal composites, carbon fiber blends, and natural wood for personalized sensory experiences
Compact, lightweight build fits easily in pockets or bags for on-the-go use
3D-printed and CNC-machined for precision and durability
Summarized by Shop
A reverse knuckle roller; contacting the dark side of your hand. Where a standard roller moves between the knuckle this stone hugs them closely.
Inspired by knuckle rollers, contact coins and worry stones; the Mellow Stone can be manipulated in a single style or a combination of all three.
The transitional nature of the stone allows slow
Dimensions
9 mm x 20 mm x 53 mm
Weight options
14 g (SS, brass, copper composite heavy), 10 g (Delrin), 9 g (Stabilized maple), 7 g (Stabilized oak), 7 g (Ebony), 7 g (Bloodwood)
Material options
Metal composites, carbon fiber blends, stabilized woods
Finish
Textured glossy, semi-gloss, smooth (varies by material)
Manufacturing
3D printed and CNC machined
Made in
Mellow Block HQ
Summarized by Shop
5.0
12 ratings
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4
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1
Well-Made and Well-Designed!
I have a pretty extensive collection of mellow stones and love every one of them. The design is simple but extremely well-executed and it delivers as both a knuckle roller and as a worry stone. I highly recommend picking up a mellow stone for yourself! No matter the material, it will not disappoint.
A
ANNIE · April 7, 2026
Excellent fidget… silent, pocketable, great for use in the office! Great as a worry stone or to play some simple tricks with. Im not adept at all at tricks and i find this friendly and unintimidating. Highly recommend :)