57mm Heavy Load Black Magic Block Dbl w/Bkt Navigation & Electronics Features the world renowned PH

Features the world renowned PH II Pump which is a Double Action Piston Pump

grime and oxidation without scratching

Integrated ACR provides DC charging from engine alternator

Segmented to allow you to cut up to a corner without hitting the adjoining wall or over cutting

57mm Heavy Load Black Magic Block Dbl w/Bkt Navigation & Electronics Features the world renowned PHThe entire line of Black Magic AirBlocks has been redesigned with a sleek new look. Their unique, performance packed engineering remains exactly the same. These strong, lightweight blocks feature free rolling high load Torlon; roller bearings for a high strength to weight ratio. Like all AirBlocks; the three way head swivels locks in front side positions. Blocks are easily disassembled with a single hex wrench. Product Specifications: Sheave Diam