Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head - RF15101

Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head - RF15101

Marsoni

M251S

$13.99

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

Ronstan Series 15 Ball Bearing Utility Block - Single Block, Loop Head - RF15101Series 15 Ball Bearing Utility Block Single Block, Loop Head 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 Applications: Dinghy control lines Vangs, cunninghams and tweakers Shock cord tensioning systems Materials: BB sheaves: UV

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I am using this with Nano-Hydroxyapatite toothpaste and so far my teeth feel really smooth. It says it helps rebuild the mineralization on your teeth and that is why they feel this way. I'm all for that! I ordered the mint flavor and while the taste is good, it does burn. It does have a lot of oils that could cause this. I'm finding the more I use it, it is burning less. I also find if I hold it in my mouth first without swishing right away, that seems to help. If it is helping my teeth and gums, then I can work through a little discomfort. I personally think its a good product backed by science.

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Reviewed in the United States on April 20, 2026

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B. Layton

Cuba, US

★★★★★ 5

Great mouthwash!

Flavor Name: Coconut Mint, Size: 8 Ounce

I am very big into natural products and ingredients. This is great mouthwash that helps sensitive teeth and keeping them clean. My son uses with braces and it helps a lot since flossing is difficult.

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Reviewed in the United States on June 1, 2026

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Amazon Customer

Birmingham, US

★★★★★ 4

Good flavor, acceptable results.

Flavor Name: Spearmint, Size: 1.31 Ounce

These work pretty good but don't last as long as I'd hoped for. Still a good buy though, much better than the store bought mouthwashes.

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Reviewed in the United States on March 15, 2026

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Patricia Ruiz

Battle Creek, US

★★★★★ 5

Great product

Flavor Name: Coconut Mint, Size: 8 Ounce

I love the product,it work ‘s to keep your teeth white .

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Reviewed in the United States on May 8, 2026

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Renata Simpson

Lowell, US

★★★★★ 5

Leaves teeth feeling CLEAN!

Flavor Name: Coconut Mint, Size: 8 Ounce

I clench my teeth so my teeth break down easily. I cannot use other mouthwash as it causes canker sores and bleeding gums. This was quite minty but not over the top. After use my teeth felt soooooooo clean!! A must try with your daily oral routine.

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Reviewed in the United States on May 7, 2026