![Ronstan Series 40 All Purpose Block - Single - Stand Up [RF41140]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/55205XL.jpg?v=1706698259)
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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
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Description
Ronstan Series 40 All Purpose Block - Single - Stand Up [RF41140]Series 40 All Purpose Block Single Stand Up 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. Captive Lock universal head can be fixed in either of two
Series 40 All Purpose Block - Single - Stand Up
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. Captive Lock universal head can be fixed in either of two planes, or free to swivel as required.
Features:
- Exceptionally high working loads
- Low maintenance, long service life
- Self-lubricating sheave
- Captive Lock universal head
- Mount with 2 x 5mm (3/16") fasteners (not supplied)
Applications:
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8M(26')
Materials:
- U.V. stabilized Acetal sheaves
- Impact and U.V. resistant, fiber reinforced Nylon cheeks
- Grade 316 stainless steel bearing race
- Grade 316 stainless steel load strap and head fitting
Specifications:
Sheave Ø: 40mm(1-9/16")
Max. Rope Ø: 10mm(7/16")
M.W.L.: 400kg(880lbs)
B. L.: 800kg(1,760lbs)
Weight: 72g(2.5oz)
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
4.6 ★★★★★
Based on 12 reviews
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Product Reviews
★★★★★ 5
The Purple Power Chew My Dog Thinks Is His Life’s Mission
I bought this purple rubber bone hoping it would survive longer than the usual 10 minutes my dog needs to destroy a “durable” toy. Shockingly, this one is still alive and thriving. Honestly, I think it might outlive me.
The material is tough enough for aggressive chewers, but still bouncy and fun, which means my dog is entertained AND my furniture gets a break. It’s the perfect size for medium to large dogs, and it keeps mine busy like he’s working an important full-time job.
He tosses it, chases it, gnaws on it with total devotion… and somehow it barely shows a scratch. The purple color is a bonus, easy to spot in the yard, and it makes him look very fashionable in his ferocious-chewer era.
If your dog believes every toy is a challenge to conquer, this chew toy just might be the worthy opponent they’ve been waiting for. 💜🐶
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Reviewed in the United States on December 5, 2025
★★★★★ 3
Not my husky's favorite
Size: Large
No bounce, it's too hard and heavy. My husky only uses it once in a while, it is not his favorite thing to chew on.
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Reviewed in the United States on February 28, 2026
★★★★★ 4
Better Than Most, But Still No Match for My Super Chewer
This is a decent chew. It’s made of a softer rubber material and has little to no odor, which I appreciate. It’s been about a week, and while it’s still technically in one piece, it’s starting to show some cracks and tiny puncture holes.
Now, keep in mind, my 100-lb pit mix Scooby Doo is a full on chew and destroy hound. If it can be chewed, he’ll find a way to shred it to bits. This toy held up longer than a lot of others but still didn’t make the “indestructible” cut in our house. He likes it, but it’s not his top pick, probably why it’s still alive.
Overall, it’s a good toy for the price. Probably not for extreme power chewers like Scoob, but it’ll hold up fine for most dogs and give you a little peace and quiet for a while. Do give it a try, Scooby Doo is a chewer in a class of his own, the fact that this has held up past a one 15 minute session is amazing in itself.
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Reviewed in the United States on November 5, 2025
★★★★★ 5
Absolutely thrilled with this
Great price
Great find
It is heavy but my pup is easily able to carry it around.
Perfect for smearing treats on and freezing - keeps him busy for ages - especially with the ridges -
thrilled with this
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Reviewed in the United States on December 5, 2025
★★★★★ 5
Multifunctional dog toy, fetch, chew, dental health
This toy feels like soft rubber, unlike the super hard plastic
Size wise, it would be a good toy to toss and play fetch with. My Aussiedoodle took to it right away. It has numerous nubs that are great for dental health. I use it, as well as other toys with nubs, to offer to my pups with a bit of
smeared on it, to help with their dental health.
🤗 Thank you so much for taking the time to read this review, have a FANTASTIC day!!😊
5★
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Reviewed in the United States on December 27, 2025
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