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I have a friend with cerebral palsy who likes to climb, and can only use one arm, he did fairly well belaying with a Petzl GRIGRI: It's a self locking belay device, and can be used easily and ra...
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I have a friend with cerebral palsy who likes to climb, and can only use one arm, he did fairly well belaying with a Petzl GRIGRI: It's a self locking belay device, and can be used easily and ra...