Brand Name: Campbell Chain;Diameter: 2 in.;Finish: Zinc Plated;Material: Steel;Eye Type: Fixed Eye;Product Type: Joist Mount Pulley;Working Load: 100 lb.; Steel body single sheave joist mount. Zinc plated to protect against rust and corrosion. For rope 3/8 or 1/2. For indoor or outdoor use. Do not use for overhead lifting or hoisting.