Techflex PKN0.25 PEEK Sleeving 1/4" (7/64"-9/16") Black - 1000 FT Spool

Marsoni

M251S

$465.27

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

Techflex PKN0.25 PEEK Sleeving 1/4" (7/64"-9/16") Black - 1000 FT SpoolTechflex PKN0. 25 PEEK Sleeving 1 4" (7 64" 9 16") Black 1000 FT Spool Techflex PEEK Secures performance of sensitive items in challenging environments Similar to PPS, but with a substantially expanded operating temperature range, PEEK (PolyEtherEther Ketone) is a high performance advanced polymer with outstanding physical properties. PEEK is inherently flame retardant, with a V 0 flammability rating, will withstand continuous use in superheated water

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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I ordered these for my son who has neck issues and has gone through so many pillows trying to find one that he liked. They’re heavy, so i was worried that they might be “too” heavy to be able to sleep on comfortably, so I ordered a second set, one firmer than the other (just in case) and gave him a set for Xmas and he loved the first set so much without even trying the less firm ones.He also needs the cooling factor and these offered that, too. They are filled with pieces of memory foam (tons of it) and each pillow can be modified by removing some of the foam. The covers are beautiful, high quality fabric with a zipper so ts easy to remove or replace the foam pieces. The size is perfect and they keep their shape. I kept the second set i ordered rather than returning them and i love the pillows. I actually modified two by removing some of the foam pieces. I kept the foam pieces in a zippered pillow protector and i can always adjust mine when or if i need to. 1000% love these.

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Reviewed in the United States on March 22, 2026

Verified Purchase

Asha

West Palm Beach, US

★★★★★ 5

The Perfect Firm Pillow l

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

It is everything it claims to be, cool, comfortable and strong. I got this for my husband first, he loves it and then got one for my son, he uses it to support his knees and has been sleeping much better since then. They both needed a firm pillow that is not super soft, firm but not achy. Finally found the perfect one.

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Reviewed in the United States on May 6, 2026

Verified Purchase

A Real Customer

Waukegan, US

★★★★★ 5

Very comfortable - spoil yourself! :)

Size: Medium, Color: Grey

Go ahead an spoil yourself! I did, and I don't regret it! I was looking for ways to make my reclining chair more comfortable. This pillow is comfortable and eases the area in the back of your neck/cervical spine through soft, thick, curved support. I also love that it is adjustable in terms of height, depending on whether I'm sitting very upright in the moment or slouching down a bit. Seems to be made of high quality material and has a Velcro strap that you can thrown over the back of the chair (for the height adjustment -- you just put another little piece with velcro on the back of the chair, and that's how it sticks).

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Reviewed in the United States on January 8, 2026

Verified Purchase

Amazon Customer

Grantham, US

★★★★★ 4

Good price, great quality

Size: Medium, Color: Grey

Really great quality, nice soft cushion. Surprised for the value!

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Reviewed in the United States on September 23, 2025

Verified Purchase

Amazon Customer

Whiting, US

★★★★★ 5

Comfy

Size: Medium, Color: Grey

I ordered three pillows similar to this, and this was the one I chose. It was a little softer behind the neck and I think had a little better memory foam feel.

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Reviewed in the United States on May 26, 2026