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![Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/55219XL.jpg?v=1643758263)
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Ships within 48 hours · Estimated delivery Jun 20 - Jun 25
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Description
Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]Nylatron Sheave Box Single Upright Lead Block Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. When mounted in an inverted position, are frequently used as upright leads. Features: The external tabs can be formed to fit the spar profile before fastening Applications: Typically used in dinghy spars for control lines such as outhauls Materials: Nylatron sheave Grade 316 stainless steel
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 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.
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Best in 7 days
Best in 7 days
4.4 ★★★★★
Based on 251 reviews
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Product Reviews
★★★★★ 5
Good purchase
Color: White, Size: 8 Panel
I bought this in white for use in a finished basement to hide equipment on the wall and create a nice space to place a bed. Because it doesn’t need to be moved and the room is temperature controlled, I expect it to last for a long time. The screen is pretty and I like that the woven material is not easily breakable. I’m pleased with the purchase.
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Reviewed in the United States on September 26, 2025
★★★★★ 4
Quality is good
Color: Black, Size: 6 Panel
Good one.
Some support need for it to stand
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Reviewed in the United States on January 28, 2026
★★★★★ 5
Very nice for the price
Color: Natural, Size: 8 Panel
I use this to hide my cat area in our garage. Makes it look clean
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Reviewed in the United States on March 1, 2026
★★★★★ 5
Perfect & light weight divider
Color: Charcoal Gray, Size: 8 Panel
I really like this divider. I have it in my bedroom which is also where my "work from home office" is. The divider blocks my bedroom and dresser perfectly. It's very light weight and very easy to move.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Room Divider
Color: Beige, Size: 8 Panel
I received my 8 panel folding divider and realized that I probably should have just ordered the 6 panel one. But it is nice and sturdy and was already put together. I am very pleased with the product.
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Reviewed in the United States on December 13, 2025
