★★★★★ 5
Holds up in high winds
Easy set up and holds umbrella in high winds
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Reviewed in the United States on April 5, 2026
Model Expo - 5/16" (8mm) Walnut Single Sheave Sister Block 4 pcs
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Model Expo - 5/16" (8mm) Walnut Single Sheave Sister Block 4 pcsModel Shipways Sister Single Sheave Block, Walnut, 5 16" (8mm) 4 pack Blocks act as pulleys used in conjunction with the miles of line that make up the running rigging. They multiply the force exerted by the crew, enabling yards and sails to propel ships 2000 tons or larger. The more parts a tackle has (rope "legs" between two blocks, determined by the number of sheaves in the blocks), the more the motivating force is multiplied, and the heavier the
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4.4 ★★★★★
Based on 153 reviews
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Product Reviews
★★★★★ 5
Sturdy umbrella base
Sturdy umbrella base. Heavy duty and should not blow over in the wind. Will hold up for years.
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Reviewed in the United States on March 23, 2026
★★★★★ 5
Great
It is very sturdy, you can fill it with water or sand, easy to move around and the perfect base for any patio umbrella. I love it
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Sturdy umbrella base
It’s really nice and sturdy umbrella base with wheels. The wheels make it easier to move wherever you want. Very easy to set up.
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Reviewed in the United States on April 22, 2026
★★★★★ 5
Exactly what I was looking for
These are exactly what I needed. I like the fact that you fill them with water so at the end of the season, I just emptied them and take them to my shed for storage. I also like that they have wheels on the bottom that rolls my umbrella around anywhere. They’re well with the money.
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Reviewed in the United States on February 11, 2026
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