Ronstan Series 25 Utility Block - Single - Swivel Shackle Head - RF573

Ronstan Series 25 Utility Block - Single - Swivel Shackle Head - RF573

Marsoni

M251S

$19.99

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

Ronstan Series 25 Utility Block - Single - Swivel Shackle Head - RF573Series 25 Utility Block Single Swivel Shackle Head Stainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase. Features: Lightweight durable construction Economical Maintenance free Applications: Vang, cunningham and trapeze retriever systems on dinghies Leech line tackles, bunk adjusters, etc

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I’ve been using these for several days now and I did notice a difference. I tend to get hot while sleeping, so I was curious if they would actually help, and they do feel cool when you lay on them. I also like that they’re soft and comfortable, not that weird texture some “cooling” products have. So far, I’ve been really happy with them.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 23, 2026

Verified Purchase

Mopardodgegirl

Grantham, US

★★★★★ 5

It works! Quality pillow.

Size: Standard (1 Count), Color: Original White (Cooling)

This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on June 2, 2026

Verified Purchase

jin

Pawtucket, US

★★★★★ 5

Most comfortable pillow I’ve ever slept on

Size: Queen (1 Count), Color: Crescent White(cooling)

This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.

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Reviewed in the United States on June 6, 2026