Play-N-Squeak Batting Practice Door Hanger Cat Toy features an electronic sound module that produces an amazingly realistic mouse squeak that cats love. Indulge your "home alone" cat's preying instincts with "Batting Practice". The tethered mouse is suspended from the top of a door and will dance and bounce with each playful swat of your cat's paw. Play-N-Squeak cat toys are perfect for healthy mental and physical stimulation. It keeps them alert, agile and healthy.