The GMP 08608 H Cable Block, is used to pull cable toward or away from corner poles and any other locations. It takes cables of a diameter from 1-1/2" to 3" and is designed to endure the high stresses encountered when pulling the cable around corners of poles. It features a positive clamping mechanism that securely latches onto a strand allowing the sheave to tilt with lead without prematurely releasing it and has a 5,000 lbs load capacity. The sheave is enclosed in a forged, hinged steel frame.