KCNC SL Alloy Chainring Bolts - MTB x4

Marsoni

M251S

$10.99

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

KCNC SL Alloy Chainring Bolts - MTB x4KCNCs SL series chainring bolts improve upon their preceding model with several key improvements that add functionality and reduce weight. The most significant improvement is the addition of a user friendly 8mm hex fitting on the nut, greatly simplifying installation and removal. The bolt component features a larger 5mm hex fitting which runs the full interior length of the bolt, reducing the likelihood of stripping out the tool slot. These chainring

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Bringing a new puppy home can be rough on both of you, but this little heartbeat soother made such a difference. The first few nights my pup was whining constantly, but once I tucked this into his bed he settled down so much faster. The heartbeat sound is realistic and soothing — not annoying or too loud. It’s compact, easy to turn on, and the design is simple and clean. Great for separation anxiety too, not just new puppies. Totally worth it for the peace of mind alone!

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Reviewed in the United States on May 22, 2026

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Pat S.

Chelsea, US

★★★★★ 5

Works great. Easy to install

Great! Fits perfectly inside of stuffed dog. Great heartbeat sound.

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Reviewed in the United States on May 20, 2026

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Jessica Frigo-Smith

Draper, US

★★★★★ 4

Heartbeat machine

Not what I was expecting. Pretty small and you can't really hear it. I was hoping to put it up on a shelf for my dogs when I leave. But, they'll never hear it. I'm sure I can use it for something else. Just not what I was hoping to unfortunately

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Reviewed in the United States on January 16, 2026

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Ruthie

Whiting, US

★★★★★ 5

Great replacement heart for bear toy

Many years ago I bought a Heart to Heart Bear (1980s)--with a heartbeat. After several years the heart stopped working, but I kept the bear--thinking that some day I could fix it. Last Saturday I replaced the original heart with this heartbeat toy and now she works great! The heart is not too loud and the fact that I can start and end it without opening the bear is great. I am going to buy another one as back-up just in case this one stops working. Thank you.

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Reviewed in the United States on November 13, 2024

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Kelammo

Louisville, US

★★★★★ 1

Can’t get it open.

We CANNOT get the screw out to put in batteries! Can you send me another?

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Reviewed in the United States on November 15, 2025