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Description
Ronstan Nylatron Sheave Box - Single Upright Lead BlockNylatron 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
Nylatron Sheave Box - Single Upright Lead BlockLead 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 load housing
Specifications:
Sheave Ø: 22mm(7/8")
Max. Rope Ø: 3mm(1/8")
Max. Cable Ø: 3mm(1/8")
Fastener Ø: 5mm(3/16")
M.W.L.: 160kg(350lbs)
B. L.: 350kg(700lbs)
Weight: 30g(1.1oz)
Manufacturer : Ronstan
Manufacturer Part No : RF453
UPC : 9316800000425
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.7 ★★★★★
Based on 17 reviews
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Product Reviews
★★★★★ 5
Exceptional design
Color: Silver
Best corkscrew I have ever purchased. Loved the design which is very easy to use. The design is very attractive and adds to my decor. I give it 10 stars!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
★★★★★ 5
Sturdy and easy to use
Color: Silver
Ordered this one to replace another type that snapped apart in my hand. The Beneno Wine Opener is sturdy and easy to use. The inner silicone collar helps guide the mechanism around the bottle and cork. Opening is clean and almost effortless.
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Reviewed in the United States on June 8, 2026
★★★★★ 5
Good Value
Color: Ash silver
I bought this to replace an older wine bottle winged opener that broke when I was trying to open a bottle with a synthetic cork. This one is made of heavier stainless steel and feels like it will hold up well.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Keeps a good charge
Color: Pro 4-in-1 Wine Set - Black Silver
Works great
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Reviewed in the United States on May 16, 2026
★★★★★ 5
recommended highly...best of all
Color: Pro 4-in-1 Wine Set - Black Silver
Incredible product!!! top quality, best wine set I ever used (and I own the expensive ones)...highly recommended
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
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