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Description
Ronstan Series 40 All Purpose Single Cheek BlockProduct Description Ronstan Series 40 All Purpose Single Cheek Block Features Exceptionally high working loads Low maintenance, long service life Self lubricating sheave Sheave 1 9 16 in. Max. Rope 7 16 in. Max. Cable in Pin in. M. W. L. 880 lb. B. L. 2200 lb. Weight 2. 3 oz. Product Information All purpose (AP) blocks are a great all around solution. Self lubricating Acetal polymer sheaves running on polished stainless steel races perform equally
Product Description
Ronstan Series 40 All Purpose Single Cheek Block
Features
Exceptionally high working loads
Low maintenance, long service life
Self-lubricating sheave
Sheave Ø - 1 9/16 in.
Max. Rope Ø - 7/16 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 880 lb.
B. L. - 2200 lb.
Weight - 2.3 oz.
Product Information
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.
Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave.
Applications
Mainsheet
Halyard
Vang
Spinnaker control lines on off-the-beach catamarans, one design classes and sports boats up to 8m (26ft)
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 cheeks
Features
Sheave Ø - 1 9/16 in.
Max. Rope Ø - 7/16 in.
Max. Cable Ø - in
Pin Ø - in.
M.W.L. - 880 lb.
B. L. - 2200 lb.
Weight - 2.3 oz.
Product Information
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.
Can be mounted on masts and booms using the curved surface adapter. Can be stacked to create a double version, but no more than 60% of the rated working load should be applied to the upper sheave.
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
4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 5
iPad cover
Color: Purple, Size: ipad 9th/ 8th/ 7th gen 10.2 inch
Fits perfectly. Great quality. Very reasonable price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 4
Good cover for the price
Color: Black, Size: ipad 9th/ 8th/ 7th gen 10.2 inch
Perfect fit to my 9th generation iPad. It was easy to install. The back is plastic which I haven’t seen. It does what it says as far standing up with the foldable back. Seems like good quality. I gave it a 4 because I don’t know how long the back with last since it’s not standard backing.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Excellent
Color: Navy, Size: ipad 9th/ 8th/ 7th gen 10.2 inch
Great product with a very fair price - very rare now adays
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Affordable, fashionable iPad case.
Color: Rosegold, Size: ipad 9th/ 8th/ 7th gen 10.2 inch
Fit perfect and nice unique color and pattern.
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Love mine
Color: Navy, Size: ipad 9th/ 8th/ 7th gen 10.2 inch
Rugged and protects my iPad perfectly. A little heavy but that’s why it functions so well
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Reviewed in the United States on May 10, 2026