Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan RF50100 50mm Single Block with Swivel Shackle HeadPrecision moulded Acetal 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. Head can be locked at 0 or 90 by engaging the grub screw in either the 0 or 90 degree position. Applications: Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10m (33ft) Materials: Acetal ball bearings UV stabilised
| Precision moulded Acetal 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. Head can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position. |
Applications:
- Mainsheet
- Spinnaker sheets
- Halyards and other primary applications on boats up to 10m (33ft)
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
Features:
- Sheave Diameter - 50mm
- Maximum Rope Diameter - 12mm
- Pin diameter - 5mm
- Maximum working load - 500kg
- Breaking load 1500kg
- Weight 117g
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 657 reviews
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Product Reviews
★★★★★ 5
Love it!
Color: White, Size: 2 Rolls
A very nice bracelet holder. It's much better than I anticipated. It holds everything perfectly. There is enough room on the bottom to store a lot of different things. The bracelet hold there feels sturdy, and I love the color. I like how I can look at the bracelet through the window.
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Reviewed in the United States on March 18, 2026
★★★★★ 5
See what you’re looking for at a glance
Color: Black, Size: 2 Rolls, Color: Black, Size: 2 Rolls
Impressed. This is a nice case. You can slip the bracelets on without any fuss. While I haven’t finished filling this one, I’m already considering a second case for watches and ankle bracelets. It’s convenient to see your items rather than digging for them. Nothing gets tangled either. There’s room for storing additional items below the two display rods.
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Reviewed in the United States on December 31, 2025
★★★★★ 5
Perfect little jewelry box
Color: Beige, Size: 2-Layer
My daughter loves this jewelry case. Her necklaces store nicely as it has a little pocket to secure the length of different pieces. She likes the modern color and style of the little hardware. Great quality for the price!
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Reviewed in the United States on April 20, 2026
★★★★★ 5
Pretty and delicate piece of jewelry
Color: Blue, Size: 2-Layer
Very nice lots if storage for jewelry nice jewelry box, nice price
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Reviewed in the United States on April 8, 2026
★★★★★ 5
Perfect
Color: Beige, Size: 2-Layer, Color: Beige, Size: 2-Layer
It is very aesthetic and it was perfect for all my jewelry. A nice touch to my desk too.
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Reviewed in the United States on May 25, 2026