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Ships within 48 hours · Estimated delivery Aug 24 - Aug 29
For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan Series 75 Single Ratchet BlockProduct Description Ronstan Series 75 Single Ratchet Block Product Information The patented extruded hole design, in conjunction with the groove profile of the sheave, provides a more powerful grip than conventional designs up to 20: 1 holding power. Unrivalled low weight is achieved by the use of a Torlon ratchet pawl, high grade machined alloy sheave and black Acetal hubs and bearings. On Off switching knob is fitted to both sides of the swivel
Product Description
Ronstan Series 75 Single Ratchet Block
Product Information
The patented extruded hole design, in conjunction with the groove profile of the sheave, provides a more powerful grip than conventional designs - up to 20:1 holding power. Unrivalled low weight is achieved by the use of a Torlon® ratchet pawl, high grade machined alloy sheave and black Acetal hubs and bearings. On-Off switching knob is fitted to both sides of the swivel blocks (one can be removed if desired). Ratchet blocks can be disassembled for servicing or customization.
Features
Unrivaled 20:1 holding power
Dual sided On-Off switch
Ability to operate On/Off switch under load
Low friction ball bearing system
Lightweight
Cheek cut-outs for easy bearing maintenance
Specifications:
Sheave Ø: 3 in. (75mm)
Max. Rope Ø: 1/2 in. (12mm)
Max. Cable Ø: - in (mm)
Pin Ø: 9/32 in. (7mm)
M.W.L.: 930 lb. (420 kg)
B. L.: 4400 lb. (2000 kg)
Weight: 5.7 oz. (162 g)
Applications
Mainsheet on powerful dinghies and skiffs
Series 60 mainsheet systems on sportsboats using RF7 mainsheet swivel units
Control line applications on larger yachts
Spinnaker sheets on sportsboats and small keel boats (lateral lead blocks)
Materials
Carbon black Acetal ball bearings
Anodised aluminium sheave and cheek plates
Torlon® ratchet pawl
Grade 316 stainless steel forged shackle
Product Information
The patented extruded hole design, in conjunction with the groove profile of the sheave, provides a more powerful grip than conventional designs - up to 20:1 holding power. Unrivalled low weight is achieved by the use of a Torlon® ratchet pawl, high grade machined alloy sheave and black Acetal hubs and bearings. On-Off switching knob is fitted to both sides of the swivel blocks (one can be removed if desired). Ratchet blocks can be disassembled for servicing or customization.
Features
Specifications:
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
4.5 ★★★★★
Based on 26 reviews
Sort
Product Reviews
★★★★★ 5
Comfortable
Color: Teal Tranquility
Love these. They do the job!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
A must for the summer
Color: Mellow Moon
I was a bit skeptical about these after seeing on tik toc, but they really work. I have not had a pedicure in months and with these my feet remain smooth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Works for foot psoraisis
Size: 2 pairs black L
Got these for work (service industry) to reduce issues with psoriasis and blisters while putting on 20k+ steps a day. Over time the wounds healed and I could work without so much pain. I now don't use them all the time like I used to, only when a new lesion or blister appears, too prevent a breakout. Tip: if you're not in full breakout, wear thick socks under these as a barrier to friction.
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Reviewed in the United States on April 28, 2026
★★★★★ 4
Work well but run small
Size: 1 pair black L
They do seem to run a bit small. I bought them for my bf but snagged them from him because I couldn’t resist! I’m about a W8/12 and they were just a little big but unlike others, I just put them on while sleeping and didn’t walk around with them. If you’re just planning on that, they did a great job at sloughing and moisturizing 😎
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Reviewed in the United States on April 25, 2026
★★★★★ 5
Good socks they work.
Size: 2 pairs black L
I normally wear size 13&half to 14 men's, and these fit me ok. They sit just below the ankle. They can get a little tight for me so you should look out for that if you are on the thicker side. But they work as advertised and help moisturize your feet. I recommend wearing them if you're going to just be hanging around home for a bit in one spot as they can be a little slippery to walk in if you go fast. Would not recommend going up and down stairs.
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Reviewed in the United States on August 28, 2025
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