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Description
Ronstan Series 40 BB Block, Fiddle, BecketProduct Description Ronstan Series 40 BB Block, Fiddle, Becket Product Information Sheaves running on Acetal or Torlon ball bearings provide high performance & low friction. The 2 stage ball bearing system provides consistent performance over the full load range. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked
Product Description
Ronstan Series 40 BB Block, Fiddle, Becket
Product Information
Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Captive Lock™ universal head can be fixed in either of two planes, or free to swivel as required. Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools
Features
- Low friction Acetal or Torlon® bearing system
- Lightweight
- Cheek cut-outs for easy bearing maintenance
- Captive Lock™ universal head
- Slotted pin shackle eliminates fouled lines
- Snap fit removable becket pin
Specifications
- Sheave Ø - 1 9/16 + 15/16 in.
- Max. Rope Ø - 5/16 in.
- Pin Ø - 3/16 in.
- M.W.L. - 770 lb.
- B.L. - 2200 lb.
- Weight - 3.4 oz.
Applications
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
- Typically used in direct 4:1 purchase systems such as mainsheets and boom vangs
- On larger boats they are used for fine-tune mainsheet tackles, outhauls, cunninghams, checkstays, genoa lead pullers and traveller controls.
Materials
- Acetal ball bearings
- UV stabilised Acetal sheave
- Grade 316 stainless steel load strap and head fitting
- Impact and UV resistant, fibre reinforced Nylon cheeks
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 28 reviews
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Product Reviews
★★★★★ 4
Comfortable
Size: 9-10 Women/7.5-8.5 Men, Color: Slide Navy-ultrasoft-version
I hope they convert this sandal into shoes. I would definitely buy them. It is so comfortable.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
I love the metallic iridescent!
Why did you pick this product vs others?:
I love the color and the feel but the sizing is wonky. I’m a perfect 7.5.
The 7 wears like a 6-6.5 and the 8 is just a little too big.
I’m keeping my 7 in the blue and I have a pair in wine/purple in 8 from a few years ago.
I just won’t be running a mile in them anytime soon! LOL I love the look!
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Reviewed in the United States on June 30, 2025
★★★★★ 5
Soft and comfortable
Great to slip on after being outside
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Reviewed in the United States on May 3, 2026
★★★★★ 3
Comfortable and good traction
After being impressed by a similar (but not identical) pair of cheap slippers at an AirBnB rental, I searched out these. I bought the 44-45 size for my size 10.5 (US) feet; according to the size chart, that's supposed to fit sizes 10.5 to 11. I find that they're quite large, so that they're loose on my bare feet. In crew socks, they're OK and I use them as house slippers.
As advertised, they're soft, flexible, and springy. They grip the floor quite well. They're way better than the Crocs thong-style sandals I was using as bathroom sandals before. All in all, good value for money, but if you're using them as bathroom slippers and you have normal width feet, round the size down if you're at the small end of the stated range.
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Reviewed in the United States on October 22, 2024
★★★★★ 5
EQUICK Cloud Slides Pillow Slippers for Women
Very comfortable and lightweight. No stiffness at all.
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Reviewed in the United States on April 25, 2026