“This video from retailer GME Supply describes the Kong Duck as an incredibly small, lightweight, and versatile device for a wide variety of tasks. It highlights its use for emergency belays, work positioning, and rope ascent, noting it can be installed with one hand. The review mentions it works with 8-13mm ropes and 10-15mm flat or tubular slings and conforms to EN567 standards.”

“This blog post compares the Kong Duck to the Petzl Mini Traxion, concluding that the Mini Traxion is the better overall device, but the Kong Duck is the superior choice for lightweight endeavors. The Duck's advantages are its significantly lower weight (70g) and smaller size. Its disadvantages include having more friction due to the lack of a pulley and a design that can increase friction in certain crevasse rescue hauling systems.”

“The Kong Duck is praised for its versatility, lightweight, and compact size compared to typical handled ascenders. It can be used as an ascender, progress capture device, or length adjuster for a safety line on both ropes and flat webbing. However, the review cautions against shock-loading the device and notes its lower maximum load compared to some competitors like the Petzl Micro Traxion. The author concludes it's an excellent piece of gear for situations where size and weight are critical and the exact terrain is unknown, though a dedicated ascender or pulley system might be better for specific, intensive tasks.”

“This YouTube video compares the Ropeman 1 to the Kong Duck specifically for saddle hunting applications.”

“A user on the Mountain Project forum expressed concerns about the quality control of the Kong Duck, describing it as feeling "cheaply made" and noting that a side plate bent after only a few dozen uses. The user felt the device was a "piece of junk" and would not feel comfortable using it due to durability concerns. Another commenter countered this, stating the Duck was very popular in Chamonix for light crevasse rescue and that they carry one for that purpose, suggesting it's not fair to call it junk.”

“In a video focused on saddle hunting, the reviewer demonstrates the Kong Duck on an 8mm rope, praising its one-handed operation and how effortlessly it moves up and down the rope. They highlight that it grabs immediately without any slippage when preloaded and are impressed by how simple, light, and minimal the device is.”