Ronstan Series 40 All Purpose Block - Single - Universal Head - RF41100

Ronstan Series 40 All Purpose Block - Single - Universal Head - RF41100

Marsoni

M251S

$21.99

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

Ronstan Series 40 All Purpose Block - Single - Universal Head - RF41100Ronstan Series 40 All Purpose Block Single Universal Head RF41100 Series 40 All Purpose Block Single Universal Head All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising

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I love the idea of the dogs not eating nylabone plastic so have been searching for "healthier" options that last for heavy chewers. Two German Sherpherds, they are not big fans of the circular shaped toy but love the antler shaped one and even with both chewing on it, has not been destroyed yet and is not cutting their gums open. I am not finding pieces laying in the carpet. Recommend this

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Reviewed in the United States on May 29, 2026

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JW356

Alexandria, US

★★★★★ 5

all natural - dogs love them!!

Size: Large, Color: Antler

Our golden retriever and lab both love these chews! All natural, not plastic like other brands. This is their favorite chew toy!!

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Reviewed in the United States on May 13, 2026

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LJB

Battle Creek, US

★★★★★ 5

My dog likes it!

Size: Medium, Color: Antler, Size: Medium, Color: Antler

My aggressive chewer loves it! I have a 20 pound rat terrier ....small was recommended, but we went with a medium. He went to work on it right away. He is not picky about chew bones but it makes me feel better that it is a natural material. The chewed photo is about 30 mins after giving it to him.

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Reviewed in the United States on May 7, 2026

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Amazon Customer

New York, US

★★★★★ 3

Not for us!

Size: Large, Color: Antler

I'm sure for a dog that doesn't chew, would be great. Ours went through it in days, leaving sharp shards and making his gums bleed.

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Reviewed in the United States on May 8, 2026

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