This 1.5 inch single sheave rigid eye pulley will fit any rope, cord, or string up to 3/8". Our pulleys are die cast construction and nickel plated making them strong and durable. Because of the variety of products they work with our pulleys are versatile and have many different uses both indoor and outdoor. They are best used for guiding rope or cable and are made to prevent knotting and tangling to ensure that the rope or cable goes through smoothly and efficiently.