Patio, Lawn & Garden
SRM-225 SRM210 Trimmer Head for Echo Speed Feed SRM2100 SRM225 SRM200 SRM230 SRM250 SRM265 SRM266 SRM280 Shiandaiwa T195S T220 T222 T230 T231 Trimmer
Bias-adjusted across 556 Amazon ratings, Bayesian-shrunk to the category prior so the headline score reflects relative quality — not a raw star average. Cohort: Patio, Lawn & Garden.
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How the score was built
- Amazon ratings
- 556
- Raw star average
- 4.3 / 5
- Bayesian avg
- 4.30
used for the Bayesian percentile
unadjusted Amazon mean
raw rating shrunk to the category prior
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Same category · Patio, Lawn & Garden
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