The Litterboy Chenille Mouse refills fit the Popular Wand / Rod Toys. Cats go crazy with this refill! ,You will need to hide it away while not in use!! The Litterboy Chenille Mouse is made of Chenille Yarn and Feathers. All securely fixed to a Leather core running through the middle (No sharp metal bar like other brands) The connection to the wand toy is via a braided strong cord loop on the front securely fixed to the leather core. Simply clip on to play! (rods available separately and required to use attachment). Every cat has an inbuilt natural hunt instinct and need to hunt to lead a happy fulfilled life. Cats love the natural hunt toys. As with ALL cat toys, please supervise play and put away when not in use. Approx 5" - Colors are Assorted Please inspect the wand and attachments often for rips, tears and/or signs of damage, and remove the toy if damaged or if parts become separated, as injury may result.