D4 Descender
Controlled-descent device with safety descent lever containing dual brake mechanism for accidental release or panic grab. Standard: EN 340, class A (exceeds CSA Z259.2.3-99 and ANSI Z359.3-06). Fits 7/16 in. (11 mm) kernmantle rope, hinged side plate to facilitate rigging, aluminum alloy sheaves, stainless steel side plates.