eastern electricity wire rope cable pulley puller off road 4x4 safari tensioner

something else i have had years and used about twice.
fully open it is 20mm and shut 5mm.
just needs a wire brush and maybes a bit of 3in1 to make it open and shut smoothly.

Just the described object in the picture.
Postage is 2-5 days via Other Courier and England only
N.I, highlands, I.O.M etc may be extra so check if unsure.