At Height Inc RP054A1 5/8″ Medium Cast Block Pulley
The RP054A1 from ISC is a 5/8” capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes and secures easily. Eliminates the chance of dropping a sheave. The rope friendly side plates are thick aluminum with a blue powder coating to enhance the life of the block.
