SKU: 47609259957

Karver KJC50 Carbon Jammer - Rope Ø 12-22mm

Sale price$11421.00 Regular price$12690.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

Karver KJC50 Carbon Jammer - Rope Ø 12-22mmThe KJC50 is the carbon version of the legendary KJ 3 jaw high load ascender. Even though the aluminum version remains available, the KJC becomes the new standard. The secret of KJ blockers lies in 2 simple technical elements : a conical shape where the more you pull the more it gets stuck and the use of 3 jaws to distribute the load over 360 so as to never flatten or damage the ropes. Our blocker is no exception to the chore of cleaning but we have

The KJC50 is the carbon version of the legendary KJ 3-jaw high load ascender. Even though the aluminum version remains available, the KJC becomes the new standard. 

The secret of KJ blockers lies in 2 simple technical elements : a conical shape where the more you pull the more it gets stuck and the use of 3 jaws to distribute the load over 360 ° so as to never flatten or damage the ropes. Our blocker is no exception to the chore of cleaning but we have thought of you : The ascender is in 2 parts which makes it possible to extract the ascender very quickly without having to disassemble its glued – screwed support. The result : an innovative and efficient ascender that does not let go and that does not damage the strings. 

Rope Ø 8-14mm

– Innovation : 3 jaws surround the rope (instead of 2 on all other blockers on the market). The load is distributed on the rope and the sheath wears less.
– Innovation : The conical shape accentuates the hold of the rope. The more you pull, the more resistance there is.
– Design : The cone containing the locking mechanism can and installed without its foot in a reinforced “sock” installed in any location : deck, boom, mast, bowsprit,…
– Convenient : The KJ can be ordered with or without its stand
– Practical : The opening and closing (in the axis of the rope) can be controlled remotely by installing extensions. The ascender is installed as close as possible and limits the undesirable effects of the elasticity of the rope. It is very often found as a blocker on headsail tack.
– Ergonomics : The new KJC is now equipped with a jaw closure button on the upper part of the ascender.
– Performance : The rope does not slip. Very little recoil when blocking.
– Convenient : the ascender can be removed from the foot without tools. Maintenance and cleaning are easy. If necessary, the cone can be replaced very quickly.
– Performance : Extremely compact and light.
– Design : Online ordering allows the blocker to be installed in very small and even hidden locations.
– Performance : In the open position, the jaws open wide and offer very little resistance to the string
– Performance : The reduced wear of the sheath greatly limits string replacements. Investment in technical ropes is relevant
– Ergonomics : No constraint on the operations height (unlike a jammer that opens from the top : Each KJ can accommodate a wide range of diameters without affecting performance
– The KJ is also available without its foot (KJ CONE) in order to be installed in a laminated liner
– Aesthetics : KJ Carbon is also available with a thin layer of natural wood. It will thus fit perfectly into a teak deck.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 47609259957

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4.7 ★★★★★
Based on 19 reviews
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GracieMarie
Lexington, US
★★★★★ 5
Beauty Quality Excellent Price!
Size: Queen (90x90 Inch), Color: Olive
Wonderful quality blanket! It’s light weight, warm without being heavy, beautiful rich color. Super fast shipping. Came in a smallish box and I was a little worried it would be cheap, but being experienced with items that come with the air sucked out so I waited to see. Sure enough, once the plastic was off it fluffed out and I popped it in the dryer for 5 minutes and all the wrinkles were gone too! I absolutely don’t need a bed spread because the finish looks like expensive silk velvet! I’m buying more for the other bedrooms! I ordered a Queen, olive, 90”x90”, price is incredible and I would have paid double to get this kind of quality! Love the rich feel and gorgeous color of this blanket. I know they call it olive but it is actually a deep luxurious fern from an untouched dark forest filled with fairy houses and wonderous beings! I’m getting another, sigh…
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Reviewed in the United States on May 17, 2026
C
Verified Purchase
CatLady
Chelsea, US
★★★★★ 5
Exactly as described
Size: Throw XL (50x70 Inch), Color: Navy
I wanted to get the little longer size, to help cover my feet while I sleep, because I sleep in a recliner due to back issues. Wow! The material is super soft, and keeps just at the right temperature of warmth at night, so the material breathes well. The extra 10 inches is a godsend now.. My feet stay warm all night long now. So the fit is perfect! The quality of the blanket is great, I’ve had no problems with it. Although my white watch band is now blue.. so I guess the color likes to bleed a bit. I haven’t washed it yet, but I will wash it either alone or with dark colors, because I believe it will bleed its color a bit in the wash & perhaps in the dryer. Still, with it being so comfortable and soft, I would highly recommend this blanket to everyone!
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Reviewed in the United States on April 17, 2026
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Verified Purchase
Cole Daugherty
Dallas, US
★★★★★ 5
Buy it. Truly amazing.
Size: California King (102x96 Inch), Color: Black
It's a bit thinner than I thought and comes in a surprisingly small box but that doesn't matter at all because there's so much blanket and it's super soft, it feels like covering up with a cloud. Perfectly warm, perfectly cool and perfect for sharing the bed with a blanket hog (or your dog babies). Folds up nice and tight for storage too which is always a plus. Buy this, it's worth the price forsure.
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Reviewed in the United States on May 20, 2026
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Verified Purchase
demmie thomas
Lowell, US
★★★★★ 5
Blanket
Size: Twin (60x80 Inch), Color: Grey
This blanket is one of those go-to affordable staples—super soft, lightweight, and perfect if you want something cozy without feeling heavy or bulky. ⸻ 👍 What stands out * Soft microfiber fleece – smooth and cozy against the skin * Lightweight but warm – good balance for all seasons * Perfect twin size (60x80) – fits beds, couches, or layering * Clean, simple design – grey goes with everything * Durable stitching – double-needle edges help it last longer
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Reviewed in the United States on April 19, 2026
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Verified Purchase
Julie R
Houston, US
★★★★★ 4
Soft and cozy, sizing seems a bit inconsistent
Size: Queen (90x90 Inch), Color: Sage Green
I actually ordered two of these blankets in two different colors. We had urgent need to add a bed with all new bedding (medical reasons), so I ordered these blankets in a rush. The quality of the blankets seems good. They are very soft and cozy. Lightweight, yet warm. The only issue is that two blankets that should be identical in all ways other than color are actually not even close in size. No matter how hard I try, I cannot get these blankets to line up equally. I really don't like having one blanket hanging lower than the other, especially now that this bed is just inside our front door where every visitor can see it. The king size quilt should in theory cover this discrepancy, but it doesn't fit correctly (another issue). It also means that the blankets are not equally distributed over me and my husband at night. Other than the size inconsistency, I really like these blankets and think they are good value, plenty warm for Wisconsin winters when doubled up with sheets and quilt.
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Reviewed in the United States on February 25, 2026

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