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- USA
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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Description
Ronstan Series 20 Double In-Line BlockProduct Description Ronstan Series 20 Double In Line Block Features Low friction High static and dynamic load capacity Lightweight Sheave 3 4 in. Max. Rope 1 4 in. Max. Cable in Pin in. M. W. L. 550 lb. B. L. 1210 lb. Weight 1. 0 oz. Product Information Precision molded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance & low friction. Applications Dinghy control lines Dinghy vangs Cunninghams Traveler controls
Product Description
Ronstan Series 20 Double In-Line Block
Features
Low friction
High static and dynamic load capacity
Lightweight
Sheave Ø - 3/4 in.
Max. Rope Ø - 1/4 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 550 lb.
B. L. - 1210 lb.
Weight - 1.0 oz.
Product Information
Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.
Applications
Dinghy control lines
Dinghy vangs
Cunninghams
Traveler controls
Dinghy barber haulers
Spinnaker pole launching systems
Materials
Stainless Steel ball bearings
UV stabilized Acetal sheave
Grade 316 Stainless Steel load strap and head fitting
Impact and UV resistant, fiber reinforced Nylon cheeks
Features
Sheave Ø - 3/4 in.
Max. Rope Ø - 1/4 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 550 lb.
B. L. - 1210 lb.
Weight - 1.0 oz.
Product Information
Precision molded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance & low friction.
Applications
Materials
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
4.4 ★★★★★
Based on 2223 reviews
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Product Reviews
★★★★★ 5
GREAT for older homes and demands of modern technology!
Color: White
This item is working out well for me. I am visiting my son and daughter-in-laws home that the electric outlets are not updated. So the two prong plus the outlets on the power work out very well. GREAT purchase!
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Reviewed in the United States on April 22, 2026
★★★★★ 5
This is exactly what was needed!!
Color: White
This is a nice unit. I got it as I have started traveling a bit. It is a headache to try to figure out where to plug everything in to get charges. Especially when you are staying at people's houses, I don't like bothering them. I can put this in my laptop bag and bring it along with all the cords that are still plugged in. I really like that it is two-prong plug and the cord swivels. It will work in any plug-in and location. It costs a bit more than some of the others, but I think it is worth the extra few dollars.
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Reviewed in the United States on November 13, 2025
★★★★★ 4
Great
Color: White
Great product. Fits perfectly in my house. Only reason I gave 4⭐️ is because the plug has been loosening out of the outlet and making my tv turn off. The only reason I believe it’s doing that is because of the plug and how it can turn flat. Never had the problem with my tv before using this.
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Reviewed in the United States on July 30, 2023
★★★★★ 5
Works perfectly
Color: White
Works great! Used on a cruise and too care of the whole family of 4!
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Excellent 2 prong powe strip 👌🏽
Color: White
Works great!
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Reviewed in the United States on April 11, 2026