Can’t seem to figure out how to tighten up the slack in the rope. It wants to lock up every time I try to pull on it

This device is not designed to be used as an ascent device. It’s just as hard to pull in slack as it is for the line to run out when descending.

Is there a weight limit to this?

Yes, the max weight limit is 900 pounds.

Can it be used in gear for fire fighters, will iy withstand some heat?

Generally speaking, keeping away from fire is more important! We tested it on 80ft drop at speed of 1ft / s for 3 times, Observed maximum temperature increase was 58deg Fahrenheit, 69F outside temp, 127F the descender temp. From the results, the faster the decline, the higher the temperature. I found nylon and polyester ropes have a melting point about 450F on the technical website, Some information Tom Jones sent stated the maximum usable temperature should be 194F Conclusion: From the data, it seems unlikely Descender can generate enough heat to damage the rope when stopped if the melting point is used but we shouldn't follow this. Using the limit Tom provided on a hot day (100+ F) it probably possible to reach the limit, but you'd have been going very fast. At the same time we do not approve of dropping more than 330ft uninterruptedly Repeat once more: keep the rope away from the fire!

Can you Ascend Freely? Also will it stop you from falling?

It will not ascend with a 12mm rope. It has an anti panic cam that, unfortunately, locks in when you try to ascend. It descends wonderfully, will not ascend on larger rope....if any. Also, it DOES stop completely, with no creep. And I am 225+ gear.

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Self-Braking Stop Descender - CE Certified Rescue & Climbing Gear

Product ID: 91136546

Details

Brand
Ito Rocky
Color
Blue Descender
Fit Type
Universal
Material
Aluminum
Product Care Instructions
Hand Wash Only

⏱️Rapid Install/Remove Design

⚙️Aluminum Magnesium Alloy Build

🧗‍♂️Max Load 150kg/330lb

¥15887

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Description

🧗‍♀️ Own the descent, master the climb — safety and style in one sleek device!

SAFETY FIRST ALWAYS - Self-braking mechanism instantly stops descent if control is lost—your ultimate fail-safe.
QUICK SETUP NO HASSLE - Install or remove without disconnecting from your harness—save precious seconds on the go.
CE CERTIFIED CONFIDENCE - Meets EN 341 standards, trusted by professionals worldwide for demanding environments.
VERSATILE FIT FOR EVERY ROPE - Compatible with 9-12mm ropes, perfect for climbing, rescue, and aerial work.
EFFORTLESS CONTROL ZERO TWIST - Sensitive handle ensures smooth, rope-friendly descents every time.

This CE-certified Self-Braking Stop Descender crafted from durable aluminum magnesium alloy supports up to 150kg and fits 9-12mm ropes. Designed for rapid installation without harness removal, it features a sensitive handle for smooth, twist-free descents and an automatic braking system that halts your fall instantly. Ideal for climbing, rescue, and aerial work, it combines professional-grade safety with user-friendly versatility.

Specifications

ASIN	B07JKL3H7L
Age Range Description	14+
Best Sellers Rank	#159,109 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #61 in Climbing Belay & Rappel Equipment
Brand Name	Ito Rocky
Collection Name	All
Color	Blue Descender
Customer Reviews	4.2 4.2 out of 5 stars (343)
Fit Type	Universal
Import Designation	Imported
Item Highlight	Auto-Braking with Anti-Panic Function for Rescue, Cave Rappelling, Aerial Work, and Emergency Escape, Fits 9-12mm ropes
Manufacturer	Georsh
Material	Aluminum
Number of Items	1
Occasion	Mountaineering, Rock Climbing, Work
Part Number	VS-210
Pattern	Solid
Product Care Instructions	Hand Wash Only
Size	One Size
UPC	716294741429
Unit Count	1 Count
Weight Capacity Maximum	150 kg

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TrustScore 4.5 | 7,300+ reviews

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Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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¥15887

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Excellent communication throughout the order process. Product is perfect.

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