Best in 7 days
![Ronstan Series 50 All Purpose Block - Triple [RF51300]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/70685XL.jpg?v=1591347733)
![Ronstan Series 50 All Purpose Block - Double [RF51200]](https://cdn.shopify.com/s/files/1/0405/8454/4408/products/70683XL.jpg?v=1591347717)
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Ships within 48 hours · Estimated delivery Jun 19 - Jun 24
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan Series 50 All Purpose Block - Double [RF51200]Series 50 All Purpose Block Double All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing. Swivel shackle head for full 360 degree rotation (non locking).
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
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4.2 ★★★★★
Based on 2427 reviews
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Product Reviews
★★★★★ 5
Bellows kit review initial inspection’s
Very good quality. The hose clamps were event the better ones you have to pay extra in most cases.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2025
★★★★★ 5
Good value, very useful for go kart wiring
Size: 100ft, Style: 6C-18AWG
It's a good spool to have around to wire lights and things on the go karts. Also came in handy when I had to patch a bit of melted wire harness on the tail of the old Dodge.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Beware! Very thick wire
Size: 50ft, Style: 6C-18AWG
I'm not going to ding the product, because it's totally what it says it is. I didn't look at the diagrams to see that this wire is 10mm wide. Almost half an inch. Waaaay to thick for the project I needed it for.
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Reviewed in the United States on November 13, 2025
★★★★★ 4
Fair product
Size: 30ft, Style: 6C-18AWG
nice product good price, the only issue I had was the sleeve was very loose on the wires so doesn't really hold the wires in place.
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Fantastic to do 1 run and power multiple loads
Size: 30ft, Style: 6C-18AWG
Great for wiring up multiple loads. In my case multiple lighting with different switches so that I can turn them on independently from one another.
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Reviewed in the United States on April 1, 2026
