S&M Seat Post Shim / 27.2 to 25.4

Marsoni

M251S

$19.99

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

S&M Seat Post Shim / 27.2 to 25.4S&M Seat Post Shim 27. 2 to 25. 4 Fits in any frame designed for 27. 2mm posts and reduces to 25. 4mm. Shim is 3" long and is slotted to allow seat clamp to tighten.

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Fast: 2-3 business days
Express: 1-2 business days

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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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.

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Reviewed in the United States on May 23, 2026

Verified Purchase

Mopardodgegirl

Carnegie, 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.

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Reviewed in the United States on June 2, 2026

Verified Purchase

jin

New York, 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