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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
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Great buy
Size: 3.5 Big Kid, Color: Blue/Pink
Perfect for my 2nd grader. They were a little tight on day one, but broke them in nicely. Great color, cute style.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 29, 2024
★★★★★ 5
Sleek and comfy!
Size: 4 Big Kid, Color: Black
My daughter is hard on shoes and doesn't like to clean them. These paired well with her school uniform and are very durable and easy to clean and comfortable! Proud I purchased them. I was skeptical about the look at 1st,but they ended up being pretty sleek, simple, and classy for a kid! Not to blah and not too flashy. And if you know what you know about the Saucony,this was a popular throwback that still serves today! Glad they are still in business! These kids don't know what they got with these!
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Reviewed in the United States on October 23, 2025
★★★★★ 4
Love
Size: 5.5 Big Kid, Color: Black
They can be nice casual dress shoes that go with formal. They run small but fit well in my 100 year old who relatively has wider feet. I like the color that is all black. Easy to put on and nice and comfortable for daily wear.
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Reviewed in the United States on July 21, 2025
★★★★★ 5
Cute and comfy shoes!
Size: 4 Wide Big Kid, Color: Black/White
I like my new shoes!! My dad ordered these shoes for me and I love them. They are so cute and stylish. They fit well because of their wide size so my toes have enough room. They are not to heavy so I can easily run ostead of my feet being weighted down. They are very durable because i have been using them and they don't easily rip or tear. I love these shoes.
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Reviewed in the United States on March 5, 2025
★★★★★ 5
Great Quality and Style!
Size: 11.5 Big Kid, Color: Black/White
These lightweight athletic shoes are of great quality and durability for a child on the go.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 1, 2026
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