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Harken 57mm Quad Block Swivel, Center BecketHSB380 - HSB380
Harken 57mm Quad Block Swivel, Center BecketHSB380 - HSB380
Harken 57mm Quad Block Swivel, Center BecketHSB380 - HSB380
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Harken 57mm Quad Block Swivel, Center BecketHSB380 - HSB380

Marsoni M251S
Sale price$154.99
Pay 4 payments of $38.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Harken 57mm Quad Block Swivel, Center BecketHSB380 - HSB380Harken 57mm Quad Block Swivel, Center BecketHSB380 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
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
Based on 221 reviews
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Product Reviews
C
Verified Purchase
Colleen P. Sisco
Cuba, US
★★★★★ 5
Works great with tennis balls
I have a pretty large yard, and this thrower is great for my little Jack Russel puppy. It even picks up ball without having to touch all the spit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
M
Verified Purchase
Michael Wheeler
Battle Creek, US
★★★★★ 5
Its awesome
Perfect 👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
M
Verified Purchase
Michele Z.
Dallas, US
★★★★★ 1
Thing is absolutely garbage. Ball didn’t make it back once! Broke in half
Junk and they don’t follow through with the shipping that they claim. Said between 7am and 11am. Don’t post it if ya can’t fulfill your shipping expectations
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
J
Verified Purchase
Julie Kennemore
Port Orchard, US
★★★★★ 4
Good toy for dogs
This is a great toy! I do wish the handle was a little longer because I do not have a lot of upper body strength due to health issues. I can still throw with this further than I can without the launcher so my dogs really love it and get excited any time I get this out!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
T
Verified Purchase
TATA
Phoenix, US
★★★★★ 2
Good throw, bad ball
Ball cracked open after first fetch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026

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