I would go to Greenlees web site and find what you probably have.
However if I was buying I would go for the equipment that looks just like Greenlees but is painted blue. I am sorry I can not remember the name of the company that makes the blue stuff but it is good quality for reasonable prices.
Salty's might know it as a block and tackle.
Be sure to stretch before for you handle that LV ...
I am looking for some heavy duty wire pulling pulleys. I have one but it does not have a part number or brand. Any suggestions.
Matsec is building a new power line about a mile from my house, they have hundreds of them hung on poles and on trucks, how many do ya need?