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Ships within 48 hours · Estimated delivery Jun 21 - Jun 26
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Description
Harken 40mm Carbo Air Double Swivel Block w/Becket [2639]40mm Carbo Air Double Swivel Block with Becket Low friction Carbo Air blocks are lightweight, strong, reliableand affordable. Companions to the popular Harken Black Magic block line, these small, compact blocks have very high working loads for safe, easy trimming. Specifications: Sheave (mm)40 mm Sheave (in)1 9 16 in Maximum line (mm)10 mm Maximum line (in)3 8 in Maximum working load (kg)440 kg Maximum working load (lb)970 lb Quick Guide (pdf)
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
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4.3 ★★★★★
Based on 115 reviews
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Product Reviews
★★★★★ 5
Sport tek hoodie
Size: X-Large, Color: Black
Hoodies are great quality. Wear these to work I. The winter and they block the wind an cold really well better than most brands!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
My favorite
Size: 6, Color: Black
Second time I bought these! They are my favorite shoes. Cute and comfortable can wear them for hours! First pair lasted two year of constant wear.
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Reviewed in the United States on May 7, 2026
★★★★★ 5
Cute & Comfy
Size: 6, Color: Black
Super cute & comfy heels
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Reviewed in the United States on May 5, 2026
★★★★★ 5
Great black heel
Size: 7, Color: Black
Bought these last minute for a wedding. Exactly as pictured. Comfortable to wear all night, no issues with blisters. True to size
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Reviewed in the United States on December 19, 2025
★★★★★ 4
Cute but slim fit not wide foot friendly
Size: 8.5, Color: Black
Bought these and they were so cute! The only thing was they were wide enough and I don’t typically have a wide foot. I would maybe size up or look for a wider fitting shoe if you have a wide foot. But the style and heel height were perfect not to high! I ended up returning because of the slim fit.
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Reviewed in the United States on April 9, 2026
