Rankquant
MethodologyAbout

Sports & Outdoors

Yes4All, Premium Muscle Roller Stick/Combo With Foam Roller 24" For Everyone - Advanced Massage Roller For Relief Muscle Soreness With Trigger Points, Travel Size, 4 Wheels

Sports & Outdoors4.3· 269 Amazon ratings

Bias-adjusted across 269 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Sports & Outdoors.

44.7%
Percentile · Global
34.5%
Percentile · Cohort
Sports & Outdoors
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Yes4All, Premium Muscle Roller Stick/Combo With Foam Roller 24" For Everyone - Advanced Massage Roller For Relief Muscle Soreness With Trigger Points, Travel Size, 4 Wheels

How the score was built

Amazon ratings
269

used for the Bayesian percentile

Raw star average
4.3 / 5

unadjusted Amazon mean

Bayesian avg
4.30

raw rating shrunk to the category prior

Reviewer-graph z
-0.577

bias-corrected vs. each reviewer's baseline (0 qualifying)

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Same category · Sports & Outdoors

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