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Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174
Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174
Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174
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Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174

Marsoni M251S
Sale price$34.99
Pay 4 payments of $8.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Ronstan Series 20 Lead Block - Single Pivoting Sheave - RF20174Series 20 Lead Block Single Pivoting Sheave Features: 180 degree pivoting sheave Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction. Applications: Pivoting version suits controls that need to be trimmed from either side of the boat. Materials: Grade 316 stainless steel
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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.0 ★★★★★
Based on 499 reviews
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V
Verified Purchase
Vellyvel
Pawtucket, US
★★★★★ 5
Unbeatable
Color: Black
THis is so worth it! Excellent suction, grip and fuctionalty. Great price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 5, 2026
G
Verified Purchase
gmarlin
Port Orchard, US
★★★★★ 3
Looked good
Color: Black
It was a gift, so I don't have anything to say about it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
L
Verified Purchase
lisa
Lake Worth, US
★★★★★ 5
Love it
Color: Black
The best magnetic phone holder
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
G
Verified Purchase
G M Sherman
Omaha, US
★★★★★ 2
Does not hold as advertised
Color: Black
When the dash got hot from the sun, the glue gave way and everything ended up on the floor. Couldn’t send it back because the time limit had passed but I don’t use it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
A
Amazon Influencer
Chelsea, US
★★★★★ 5
Best one so far!
Good quality and suction is strong that the mount stays in place on any part of your windshield. Installation is easy and removal of mount is easy. This is one of the best mounts I have used so far.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025

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