Ronstan Series 15 Ball Bearing Utility Block - Cheek Block - RF15151

Ronstan Series 15 Ball Bearing Utility Block - Cheek Block - RF15151

Marsoni

M251S

$15.99

Get it in 3 business days with 1 day shipping. Friday, May 29

Ronstan Series 15 Ball Bearing Utility Block - Cheek Block - RF15151Series 15 Ball Bearing Utility Block Cheek Block Features: Smallest and lightest ball bearing block available Precision molded acetal sheave running on stainless steel ball bearings provide high performance & low friction Single loop head blocks include an O ring to separate running line from head lashing or fixing Features lateral supports for improved mounting stability. Applications: Dinghy control lines Vangs, cunninghams and tweakers Shock cord

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I bought these to try out, and I was shocked to find they worked out better than my silk pillowcases. I have atopic dermatitis, and I need a pillowcase that doesn't irritate my skin. I also am having hot flashes and need something cool on my face. These pillowcases are perfect for both my conditions. I plan to buy more in different colors. My sons and husband also like it since they are always hot.

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Reviewed in the United States on May 30, 2026