Cast aluminum construction with a 1 7/16" outside diameter cast nylon pulley on a 1/4" stainless steel axle. Attaches with two 1/4"-20NC stainless steel flat head screws or two stainless steel straps (screws/straps not included).
Maximum halyard diameter is 5/16"
Holes are not pre-drilled on this assembly. You'll have to drill holes for screws or use banding.