Spiderjack 3 Mechanical Rope Ascender Descender MSA160C The double pulley design is

The double pulley design is ideal for hauling systems

Weighing just 163 g

What does the Rock Exotica P41 AZTEK pulley do

Durable construction for professional climbing use

Upper and lower anchor point setups

Spiderjack 3 Mechanical Rope Ascender Descender MSA160C The double pulley design isART SpiderJack 3 Rope Control Device The ART SpiderJack 3 is a multifunctional, self blocking rope control device designed for use with a running double rope system. Built for professional arborist climbing, it allows smooth rope feeding, controlled descent and efficient rope handling with the running rope positioned directly in front of the climber for comfortable one handed or hand over hand operation. Designed for both left and right handed