Shop double pulleys for arborist climbing, rescue, hauling, and mechanical advantage systems. This collection includes RNR, Petzl, Rock Exotica, CMI, and CAMP double pulley options such as the Poseidon Series Prusik Minding Pulley, Petzl Spin L2, Rock Exotica Omni-Block Double Pulleys, CMI Aluminum Double Micro Pulley, CAMP Janus Pro, and CAMP Dryad. Choose from compact, prusik minding, and high efficiency designs for building dependable rope systems.