MXP-HL-MSOB PULLEY - Self-Opening Block (SOB) - Micro w/thumb lock

PULLEY - Self-Opening Block (SOB) - Micro w/thumb lock - These are marine

grade pulleys with selectable self-opening action. These pulleys utilize a swivel

connection and an opening front plate. Pulleys are used to reduce friction

while pulling, hoisting and change of direction maneuvering.