Lixada 30kN Zipline Cable Trolley Pulley with Ball Bearing Rock Climbing Caving Aloft Work Rescue

Features:
Use rope with 13mm diameter (max).
Use cable with 12mm diameter (max).
Made of aluminum and magnesium alloy shell and stainless steel pulley.
Feature efficient bearings for high-speed adventure.
For climbing, rescue, aloft work, engineering, caving, etc.