Litterboy Cat Toys are Compatible with the Popular Wand toys that utilize a String or Metal Wire with the swivel connector if you have question about connecting please ask !! (Rods are available separately) Rodents are made of Deer Hair and Leather with attached to an internal plastic tube - no metal. Loop at the nose of the Rodent serves as the connection to the wand. Its securely fashioned to the leather strip inside the body. As with ALL cat toys, please supervise play and put away when not in use.