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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
4.2 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Fantastic and elegant looking nightstand or bathroom tray
Color: White 1 Pack, Size: 8" x 8" x 1.8"
I absolutely love this nightstand tray! The elegant gold trim gives it a luxurious look that instantly elevates my nightstand decor.
It works perfectly as a perfume or cologne organizer and keeps all my bottles beautifully displayed. I’ve also used one as a dresser organizer countertop to hold jewelry and skincare, and another as a stylish key tray or key holder bowl by the front door.
The quality is excellent and the design is both functional and beautiful. I love it so much, I’ll definitely be buying a few more to stack it up in a couple of my rooms.
Highly recommend!
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Reviewed in the United States on May 3, 2025
★★★★★ 5
Looks expensive
Color: Black 1 Pack, Size: 8" x 11" x 1.8"
I love this tray on my nightstand! It keeps all my little objects together & looks expensive.
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Reviewed in the United States on January 29, 2026
★★★★★ 5
Comfortable, Simple, Reliable
Size: Tenkeyless, Pattern Name: Keyboard, Size: Tenkeyless, Pattern Name: Keyboard
This is a phenomenal product, and exactly what I wanted. I used to have wrist pain while gaming; I bought this, and then completely forgot that I used to get wrist pain while gaming.
The foam is firm, but comfortable; it’s very supportive, but also flat and consistent. It’s cool, so my wrist never gets sweaty or hot just from using the wrist rest. Its rubberized bottom prevents it from moving at all while gaming. I’ve used it for about a year, and the foam has no indentation at all; in fact, there’s not noticeable wear of any kind.
My one complaint, that I’ve seen in other reviews as well, is that the fabric skin of the wrist rest isn’t quite fit over the foam: there’s some extra material, and it can wrinkle slightly.
Overall, I’m quite satisfied with the product! It’s completely eliminated my wrist pain, and I’ve gotten a year of use out of it with no problems so far. I’d say that’s more than worth the fair price, and I would buy it again without hesitation!
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Very High Quality Memory Gel Foam
Size: Mouse, Pattern Name: Mouse
Firmness is pretty solid, this material is high quality. This isn't that kind of foam that will start loosing it's shape after a year or two, this is a firm gel like substance and it's pretty comfortable.
The color is black as I expected, it's shape is rectangle just like in the pictures, it's appearance is as described.
The only think is that they do use a polyester cover, which does appear as though it may wrinkle over time, and it will likely not outlast the Gel Foam inside. Like I said though the Gel Foam is legit Gel Foam, I have heard these claims before only to find out that it's something far cheaper, that's not this.
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Reviewed in the United States on April 2, 2026
★★★★★ 5
Awesome
Size: Full Size, Pattern Name: Keyboard, Size: Full Size, Pattern Name: Keyboard
If you spend more than a few hours a day at your keyboard, stop what you’re doing and buy this wrist rest immediately. I was starting to feel serious strain after long typing sessions, and this simple accessory has completely eliminated the discomfort. It’s a true game changer for desk ergonomics.
The material quality is phenomenal. The memory foam (or gel) is perfectly supportive—it’s soft enough to cushion my wrists but firm enough that it doesn't flatten out or lose its shape, even after weeks of heavy use. The non-slip base is also fantastic, keeping it anchored exactly where I need it, no matter how intense my typing or gaming gets.
What I appreciate most is the immediate relief. The height and angle are spot on, positioning my hands and wrists in a neutral, comfortable alignment. The reduction in pressure on my carpal tunnel area was noticeable within minutes. I can now work for extended periods without the usual aches or stiffness.
This is a simple, high-impact product that vastly improves quality of life at the computer. It’s durable, comfortable, and absolutely essential for wrist health. Worth every penny for the long-term comfort it provides!
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Reviewed in the United States on November 7, 2025