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Ships within 48 hours · Estimated delivery Jun 24 - Jun 29
For Your Every Summer RSVP, with Code: SUMMER15
Description
Harken 57mm Quad Block Swivel, Center Becket [HSB380]57mm Quad Block Swivel, Center Becket Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to our popular Harken Big Boat blocks, these small, compact blocks have very high working loads for safe, easy trimming. Features: Sheave (mm) 57 mm Sheave (in) 2 1 4 in Maximum line (mm) 10 mm Maximum line (in) 7 16 in Maximum working load (kg) 1080 kg Maximum working load (lb) 2380 lb
![Harken 57mm Quad Block Swivel, Center Becket [HSB380] Harken 57mm Quad Block Swivel, Center Becket [HSB380]](https://cdn.shopify.com/s/files/1/0611/7297/3739/products/88765XL.jpg?v=1643914604)
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
4.3 ★★★★★
Based on 1403 reviews
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Product Reviews
★★★★★ 4
Very nice lighting
Lights work great. Lights up the table area and looks great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
★★★★★ 5
Expectations exceeded (and illuminated!)
I am so stoked about this purchase. Our outdoor lighting situation was terrible- motion-activated lights that cut out after ten minutes and zero power outlets outside. This umbrella light exceeded every expectation. Three brightness modes, all bright enough to actually see what you’re doing — no more squinting while socializing, reading, or attempting to do “work” outside. Cordless, easy to install, and long lasting. If you consistently forget to turn them off when you're done, you'll get about a week and a half from the batteries on the lowest setting.
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Reviewed in the United States on October 15, 2025
★★★★★ 5
Let there be light!
Easy to assemble. Lights are very bright. Very sturdy even with terrible storms it's still working and bright
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Reviewed in the United States on January 27, 2026
★★★★★ 3
Okay
I like that it fits my umbrella well, hinges open for easy application and removal, and that it has enough light for us to see our food at night.
I do not like that half of the outer lights do not work part of the time until I take out the batteries and swap them around.
Fine enough for the price, not worth the hassle of returning.
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Reviewed in the United States on May 10, 2025
★★★★★ 5
Perfect!
Lightweight and easy to use! Love the three light settings.
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Reviewed in the United States on April 27, 2026
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