Compare the outer mechanism on some of the best (and worst) Square-1 puzzles.
Compare the inner cores on some of the best (and worst) Square-1 puzzles.
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High-gloss UV finish for extra shine and improved scratch resistance. Slightly grippier feel.
Magnetic-levitation tensioning replaces springs for lower friction, faster feel and fewer spring noises.
Magnetized core/ball improves alignment and auto-centering for fewer lockups and a more stable turn.