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Description
Ronstan Series 50 Single Universal Head Block High LoadProduct Description Ronstan Series 50 Single Universal Head Block High Load Features Exceptionally high working loads Lightweight Cheek cut outs for easy bearing maintenance Suitable for both rope or wire Captive Lock universal head Slotted pin shackle eliminates fouled lines Sheave 2 in. Max. Rope 1 2 in. Max. Cable 3 16 in Pin 3 16 in. M. W. L. 1760 lb. B. L. 3310 lb. Weight 4. 1 oz. Product Information Ideal for high load applications. Wear
Product Description
Ronstan Series 50 Single Universal Head Block High Load
Features
Exceptionally high working loads
Lightweight
Cheek cut-outs for easy bearing maintenance
Suitable for both rope or wire
Captive Lock™ universal head
Slotted pin shackle eliminates fouled lines
Sheave Ø - 2 in.
Max. Rope Ø - 1/2 in.
Max. Cable Ø - 3/16 in
Pin Ø - 3/16 in.
M.W.L. - 1760 lb.
B. L. - 3310 lb.
Weight - 4.1 oz.
Product Information
Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.
Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
Applications
Mainsheet
Spinnaker sheets
Halyards and other primary applications on boats up to 10m (33ft)
Materials
Nylatron® sheave
Grade 316 stainless steel load strap and head fitting
Impact and U.V. resistant, fiber reinforced Nylon cheeks
Features
Sheave Ø - 2 in.
Max. Rope Ø - 1/2 in.
Max. Cable Ø - 3/16 in
Pin Ø - 3/16 in.
M.W.L. - 1760 lb.
B. L. - 3310 lb.
Weight - 4.1 oz.
Product Information
Ideal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.
Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required
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
4.1 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Comfort and style
Size: 8.5, Color: Chestnut
Like walking on clouds with support.
Thank you Ugg’s. Perfect size 8.5
Will buy again.
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Style, Comfort
Size: 9, Color: Sand
If I could give a Ten Star review, I would. Hands down the most comfortable pair of sandals I have ever owned.
I wore them 16 days straight while touring Italy. Comfortable and goes with all of your outfits. They pack well in a suitcase too. Light weight.
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Reviewed in the United States on May 21, 2026
★★★★★ 5
Wonderful
Super comfy and easy on and off, yet stylish imo! I could walk miles in these as a 56 yo and have worn them for three years! I hope they never stop making them. The only tweek I would suggest is to cover the footbed with leather or suede not cloth so they would last longer!
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Great value and super comfy!
Size: 7, Color: Sand
These shoes are so comfortable and my new go to for summer. They are lightweight and fit like a glove. Great value
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Lovely sandals!
I highly recommend!
These are so comfortable! Right out of the box, they can be worn all day. The velcro-adjustable straps are great for making for a perfect fit. The aren't clunky to wear, even though they appear to be. They're super cute, in my opinion. The sock liner is textile, so feet feel good all day, not slimy, like leather and suede can sometimes make feet feel if socks aren't worn.
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Reviewed in the United States on March 17, 2026