STEIN Pre-Tension Rigging Pulley
Simply attach a prusik to the main rigging line attach the pulley to the prusik place a couple of wraps around the lowering device then
loop up to the pulley; you now have a simple 3:1 ratio tensioning system which can easily be loaded, tensioned, and removed single handed.
Specifications
Min Breaking Strength (kN): 20 - Working Load Limit (kN): 4 - Material: Aluminium - Diameter (mm): 16