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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
For Your Every Summer RSVP, with Code: SUMMER15
Description
60 mm Roller Bearing Block - Single, Backstay, HalyardThe RBB60 Single Backstay Roller Bearing Block is ideal for backstays (permanent backstays) as the upper block in a cascade system or for a 2: 1 main halyard arrangement. Made with top quality materials like machined black anodised aluminium and Torlon roller bearings, it ensures durability and performance under all conditions. Acetal thrust bearings stabilize the sheave when subjected to side loads. Seldn Roller Bearing Blocks (RBB) is our

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 336 reviews
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Product Reviews
★★★★★ 5
Awesome hot weather hat.
Size: One Size, Color: (025) Castlerock / Castlerock / Reflective
Very thin material which makes it perfect for the summer. I love to wet it and then wear it when it’s really hot. Great quality.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Best sun cap
Size: One Size, Color: (025) Castlerock / Castlerock / Reflective
Lightweight, comfortable, and fits my XL head
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
★★★★★ 5
Great running hat.
Size: One Size, Color: (001) Black / Black / Reflective
I absolutely love this hat, it is so cute and great for warm weather. I especially love to run with it, you can tighten it easily so it does not blow off if it is windy.
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Reviewed in the United States on August 17, 2025
★★★★★ 4
Thin and flimsy
Size: One Size, Color: (001) Black / Black / Reflective
Very flimsy hat
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Reviewed in the United States on April 18, 2026
★★★★★ 5
Worth the prize
Size: One Size, Color: (001) Black / Black / Reflective
Light and breathable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
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