Is it strong enough for a 250-pound adult?

Each kilo newton is 224.81 lb so with a 15-1 safety factor a 50 kn device can hold 11,240.44 lb total, that is 749 lb of load. A kernmantle rope can hold as much as 9000 lb And a 24 kn carabiner (read its rating and safety factor) can hold 5395.41 lb. So Remember you are as strong as your weakest link. Read all before you hang on a rope.

What material of it? Is it durable? I need to be safe...

It is made of aluminum. It appears to be very durable, but I haven’t used it yet. I also need it to be safe.

Does it have any international certification.. ??

It is NOT UIAA rated. I returned mine. It is also big and heavy when compared to the Black Diamond figure 8, which sells for about the same price, is UIAA rated and is smaller & lighter.

How large diameter of rope is this rated for?

The applicable rope diameter is 8-13mm.

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50KN Rescue Figure, 8 Descender Large Bent-Ear Belaying and Rappelling Gear Belay Device Climbing for Rock Climbing Peak Rescue 7075 Aluminum Alloy

Product ID: 163812298

Details

Brand
AOKWIT
Color
Red
Item Weight
282 Grams
Material
Aluminum
Shape
Figure 8

🔒Auto-locking bent-ear design

⚙️7075 aluminum alloy durability

🧗‍♂️50KN breaking strength

COP 179557

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🧗‍♀️ Elevate your climb with the gear that pros trust—safety, control, and style in one sleek device!

EFFORTLESS LOCK OFF - Bent-ear design enables secure hands-free locking, perfect for high-stress rescue or climbing scenarios.
SMOOTH CONTROLLED DESCENT - Optimized friction system delivers seamless rope action for precise belaying and rappelling.
UNMATCHED SAFETY ASSURANCE - 50KN (11,000 lbf) braking strength ensures ultimate control and peace of mind on every descent.
PREMIUM AEROSPACE GRADE BUILD - Crafted from lightweight yet ultra-strong 7075 aluminum alloy for durability without bulk.
VERSATILE FOR EVERY ADVENTURE - Ideal for rock climbing, ice climbing, rescue missions, and technical rope work—be ready for anything.

The 50KN Rescue Figure 8 Descender by AOKWIT is a top-tier belay and rappel device engineered from aerospace-grade 7075 aluminum alloy. Featuring a robust 50KN braking strength and an innovative bent-ear auto-locking design, it offers climbers and rescue professionals superior control, safety, and hands-free locking capability. Lightweight at just 282 grams and sized at 6.7 inches, this device is perfect for demanding outdoor activities including rock climbing, ice climbing, and technical rescue operations.

Specifications

ASIN	B07W7T33XC
Best Sellers Rank	#17,160 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2 in Climbing Belay & Rappel Equipment
Brand Name	AOKWIT
Color	Red
Customer Reviews	4.8 4.8 out of 5 stars (2,636)
Item Dimensions L x W	6.7"L x 6.7"W
Item Weight	282 Grams
Lock Type	Auto-locking
Manufacturer	AOKWIT
Material Type	Aluminum
Shape	Figure 8
UPC	653451847252
Unit Count	1.0 Count

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COP 179557

Duties & taxes included

In stock

Sold byAmazon ColombiaDelivered 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 Colombia.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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