Ronstan Series 75 Core Block - Single - RF74100

Ronstan Series 75 Core Block - Single - RF74100

Marsoni

M251S

$109.99

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

Ronstan Series 75 Core Block - Single - RF74100Ronstan Series 75 Core Block Single (RF74100) Heavy Duty Sailing Block for High Load Applications The Ronstan Series 75 Core Block Single (RF74100) is a premium grade marine pulley block engineered for high load sailing systems on larger yachts and performance boats. Designed with Ronstans advanced composite technology, this block delivers exceptional strength, low friction performance, and long term durability in demanding marine environments. Built

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makes some noise, but I've seen (and played with) others at the dog park that whistle much louder than the 1 I got. all Chuckit balls... so, just this one I'm betting. but it flys good and the dog loves to chase it. he chews it a fair bit as well and the ball has not taken much damage from him (lab mix) or others that have had a go at it. I'll likely buy another at some point ... just wish it was a little louder when flying.

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Reviewed in the United States on November 4, 2025

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Birmingham, US

★★★★★ 5

Blue ball, my dog likes blue.

Just a ball right? Evidently not! My dog won’t chase an orange chuck it ball or the glow in the dark ball- only the blue one 🤷🏼‍♀️

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Reviewed in the United States on May 9, 2025

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Baker-s

Dallas, US

★★★★★ 3

I wanted a blue ball

It's great. It just wasn't blue.

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Reviewed in the United States on January 5, 2026

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Battle Creek, US

★★★★★ 5

its a great ball

works well

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Reviewed in the United States on July 8, 2025

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Betsy

Los Angeles, US

★★★★★ 5

One of the best dog toys I’ve found

Color: Blue, Color: Blue

My Great Dane puppy- at 140lbs, loves this!! We had another one that was plastic and it worked ok but this is so much better! Interactive, soft to play with, battery last a long time & he does not get bored with it. Besides is plush lamb chops, best toy ever bought for him.

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Reviewed in the United States on May 25, 2026