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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
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Description
Lewmar 72mm Double Synchro BlockProduct Description Lewmar 72mm Double Synchro Block Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimized block geometry, a free spin bearing and self aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems. Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother
Product Description
Lewmar 72mm Double Synchro Block
Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimized block geometry, a free-spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems.
Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother transfer of power from deck to sail and less wear on your rope.
Specifications
Safe Working Load(lb) - 2420
Weight(oz) - 14.29
Dimensions
Optimum Line Size(in) - 3/8
Max Line Size(in) - 7/16
Lewmar's Synchro Blocks are engineered for speed, efficiency and superior handling. We use a combination of scientifically optimized block geometry, a free-spin bearing and self-aligning head to reduce friction and increase efficiency by up to 40% over budget blocks on mainsheet systems.
Each component is perfectly synchronized with the movement of the rope, providing you with an easier, smoother transfer of power from deck to sail and less wear on your rope.
Specifications
Dimensions
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
4.8 ★★★★★
Based on 22 reviews
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Product Reviews
★★★★★ 5
Excelente 👌
Color: Yellow, Size: 20 PACK
Excelente 👌
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
★★★★★ 5
Excelente
Color: Yellow, Size: 20 PACK
Excelente calidad, la compré hace meses y aún se conservan
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Doggo loves them!!!
Color: Yellow, Size: 20 PACK
Doggo loves the balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
★★★★★ 5
Very sturdy for aggressive chewers
My dogs favorite ball. Very sturdy for aggressive chewers. Loud squeaker.
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Great squeaker balls - dogs favorite but not for aggressive chewers.
We have a chocolate Labrador retriever and a golden retriever who love balls. Tennis balls don’t last.
We’ve been very happy with the ChuckIt quality. We especially love the bucket of orange balls those last until we lose them. We’ve tried to other products from ChuckIt and they’ve always been excellent.
Squeaker toys are a special favorite in our home. However most don’t last because our dogs are moderately aggressive chewers. They haven’t destroyed these… yet.
HOWEVER, we have a ball-obsessed, very aggressive chewer grand dog Sadie (“Ball Is Life”) who visits frequently. She goes nuts over anything that squeaks. She’s not satisfied until all squeakers are dead.
And she destroy this ball in about 2 minutes.
It’s fine when she supervised and we’re playing fetch. But when left on her own, she’ll find these balls and destroy them. We had 6 and in 2 days were down to four.
I will still give it 5 stars because nothing is indestructible. And Sadie is an exceptionally aggressive chewer.
On durability, these are above average maybe 7/10.
But be warned, aggressive chewers will destroy them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2025
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