Ronstan Series 50 All Purpose Block - Single Upright Lead - RF51171

Ronstan Series 50 All Purpose Block - Single Upright Lead - RF51171

Marsoni

M251S

$44.99

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

Ronstan Series 50 All Purpose Block - Single Upright Lead - RF51171Series 50 All Purpose Block Single Upright Lead Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire Applications: Typically used for halyards at the mast base. Materials: UV stabilized acetal sheave Grade 316 stainless steel load housing

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We offer a 30-day return/exchange service after receiving.
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I always read reviews before purchasing- so I understood this was going to be a small, light weight tri-fold. It is not meant to be extremely durable- so it wouldn't be great to have around children or animals - but is functional for certain situations. I use this as a divider between my work from home desk and my bed during the day and it is the perfect tool to keep my brain in "work mode", and not sleep mode.

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Reviewed in the United States on April 24, 2026

Verified Purchase

Katie Green

Carnegie, US

★★★★★ 5

Love them! Well made!

Color: Dark Mocha, Size: 3 Panel

Very nice product, nice color. Just too short. Will be sending back for a taller one to match other 2 I ordered! Great customer service!

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Reviewed in the United States on March 12, 2026

Verified Purchase

Suz

Birmingham, US

★★★★★ 5

Looks good and is stable

Color: Dark Mocha, Size: 3 Panel

This is perfect for my needs. I have a large bathroom window that anyone can see the toilet when the window is open. The weather is so beautiful here for many months and I hated keeping that window closed. This screen is perfect. It covers the open part of the window so no one can see in but the air flows freely (the glass is frosted so it is not a problem when closed). The screen is very lightweight and came fully assembled (which is amazing anymore). It feels stable and I think it is a good value for the money.

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Reviewed in the United States on July 20, 2025