Large Cast Iron Black Cat Door Stop / Door Weight – 5KG. This is a cool metal doorstop that is perfect for someone who is a cat lover or wants to use a decorative cast metal door stop to heighten their home. Vintage Cast Iron Cat Bookends or Doorstops these lovely cats are just the right bookends for cat lovers. It has a nice artsy flare to it. Painted and good to go. Big and black, that’s the Large Black Cat. Not as independent as most cats, this one will stand by any door to keep it open or will grace a fireplace when you need that comforting feel that all you cat lovers know only too well.