Steel Cable Thimble. Marine grade 316 stainless steel Wire rope thimbles, steel rope thimbles, cable thimbles or simply thimbles, are used to support wire rope eyes by creating a durable wear surface when connected to mating rigging hardware. The wire rope eye also helps prevent pinching, crushing, and fraying of the wire rope eye while in use. Use one (1) for each end or a cable length = two (2) per cable length Can also be used with the available black rope * PLEASE NOTE these cable thimbles are sold per piece