A bobbin is a class of descender that uses a set of "bobbins" to create friction.[1] They are most commonly marketed to cavers and rope access technicians, and are very light when compared to other descender options.[1] The most common bobbins are the Petzl Stop and Petzl Simple, but other companies such as Kong and Climbing Technologies also have designs.[2][3]
References
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^ a b"Descending". Derek Bristol. Retrieved 2025-06-29.
