Each of our Vertical Mount Pulley Assemblies are constructed of cast aluminum with a 1 1/8" outside diameter cast nylon pulley on a 1/4" stainless steel axle. Attaches with (2) 1/4" stainless steel flat head screws or 2 stainless steel straps. Screws and straps are not included.
Recommended maximum halyard (rope) is 5/16".
Please note: The picture looks as if the holes are drilled out but they are not. They can easily be drilled out by you with a 1/4" drill bit. If you would like us to drill them out please pick the "DRILL HOLES OUT" option below