Our cast iron Jack Russell Bookends are delightful home accents crafted by artisans and hand-painted and animate an energetic Jack Russell Terrier, sharp and at attention-ready to delight all who enter the room. These delightful pieces measure 4 x 3 x 6 inches and are sure to charm as bookends or decorations and make perfect gifts as only a single example our many fantastic animal bookends. Cast Iron.