EVERBILT Single-Sheave, Swivel-Eye Pulleys are ideal for light-duty applications, like combining rope or cordage for use with awnings, flag poles, window shades, etc. The wheel is free to rotate and easily lifts loads by applying little force. Direction of the force can easily be changed. The swivel eye reduces tangling. Double sheave design allows you to rig as a block and tackle set to reduce force needed to pull line. Use with rope or other cordage. Do not use with wire rope or cable.