Ronstan Series 15 Ball Bearing Utility Block - Upright Lead Block - RF15171

Ronstan Series 15 Ball Bearing Utility Block - Upright Lead Block - RF15171

Marsoni

M251S

$19.99

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

Ronstan Series 15 Ball Bearing Utility Block - Upright Lead Block - RF15171Series 15 Ball Bearing Utility Block Upright Lead Block 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've got probably 10 of these, now. The squeaker fails pretty quickly. But our dog still likes them, just not as much as when they squeak. I'm tossing these a good 75 yards and farther. The Chuckit glowballs make sounds through their holes so no separate squeakers there. Dog really likes those glowballs.

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Reviewed in the United States on March 26, 2026

Verified Purchase

MRSWST

Boise, US

★★★★★ 4

Great quality but the squeaker doesn't last long - still a good value

Size: Medium, Style: Squeaker

I have golden retrievers who never get tired of playing balls. These are VERY durable. No seams to split. They tend to chew as they bring the balls back, so the squeaker doesn't last long. Would highly recommend these. I have them on auto-delivery!

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Reviewed in the United States on December 15, 2025

Verified Purchase

Natalie Oakley

Waukegan, US

★★★★★ 5

Highly recommend

Size: Medium, Style: Squeaker

My dog loves these! They are now his absolute favorite! The squeaker lasts a lot longer than most. The rubber isn’t hard on his teeth and he likes how squishy they are and continues to play with it long after the squeaker dies. Highly recommend and will be buying more

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Reviewed in the United States on May 5, 2026