SKU: 327946538

Allen Dynamic 20mm Block

Sale price$12.91 Regular price$14.34
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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Description

Allen Dynamic 20mm BlockThe A2020 is our go to low friction, fast rolling, small pulley. Its lightweight and strong, making it ideal for dinghies, windsurfing, kitesurfing and anything else that runs smaller diameter lines. Our Dynamic range is generally the best choice for applications that require constant sheave movement. Bearings Dynamic Blocks feature our patented bearing system which uses twin rows of stainless steel ball bearings running on a stainless steel rail.

The A2020 is our go-to low friction, fast rolling, small pulley. It’s lightweight and strong, making it ideal for dinghies, windsurfing, kitesurfing and anything else that runs smaller diameter lines.

Our Dynamic range is generally the best choice for applications that require constant sheave movement.

Bearings – Dynamic Blocks feature our patented bearing system which uses twin rows of stainless-steel ball bearings running on a stainless-steel rail. This provides a superior load-carrying ability and longevity when compared to other bearing systems which run on a plastic rail.

Ultra-Strap – Our patented Ultra-Strap is used in our 20, 30 & 40mm Dynamic blocks. The Ultra-Strap is unique when compared to other designs because of its coining process. This process strengthens the strap, making it more reliable and hard-wearing as well as making it much more rope friendly than other designs. The Ultra-Strap was the first marine industry block designed to work specifically with a rope attachment.

Becket – Our 20 & 30mm blocks offer a large central rivet which not only reduces the overall weight but also offers a rope friendly attachment, perfect as a tie-off point when being used in a cascade system.

Breaking Load 540 kg
Fixing Hole Centers  -
Length  37 mm
Maximum Line Diameter  6 mm
Maximum Working Load  115 kg
Shackle Pin  -
Weight  11-1 g
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 327946538

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Belleville, US
★★★★★ 4
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Size: Small, Color: Black
This tuxedo blazer is one for the looks. It’s shiny black 100% polyester material, with a mesh net on the left side that has dark gold plastic sequins sewn on in a tree pattern. The material is taut with seams at the sides and the middle of the back. There is a single button. There are no pockets outside nor inside the jacket. The quality will hold up and is a decent value for the money. This was for a 5’5 male of slim build and fit quite snug. The measurement in inches: 17 - shoulders; 23 - sleeves; 27-1/2 nape to bottom of blazer.
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Reviewed in the United States on April 29, 2026
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George F.
Birmingham, US
★★★★★ 5
Size a tad small
Size: Large, Color: Black
So many compliments so don’t buy this if you don’t like people to notice. I’d say fits a tad on the small side.
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Reviewed in the United States on December 26, 2025
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Carla
Cuba, US
★★★★★ 5
Very stylish
Size: X-Large, Color: Black
Really nice… my husband received a lot of compliments on our cruise!
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Reviewed in the United States on January 4, 2026
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Ronald Boast
Whiting, US
★★★★★ 3
Nice blazer
Size: X-Large, Color: Black, Size: X-Large, Color: Black
Product was as described, son wanted it for a dance. Had it taken in a little for more custom fit
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Reviewed in the United States on July 18, 2025
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VGood
San Leandro, US
★★★★★ 5
Really stylish
Size: Medium, Color: Black
Looks great. My son wore to a concert for Valentines day. His gf wore a copper dress...looked so good together.
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Reviewed in the United States on April 23, 2026

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