Play-N-Squeak Cat Toys are the only toys with electronic RealMouse sound! Featuring an electronic sound module that produces an amazingly realistic mouse squeak that cats love, Play-N-Squeak toys are perfect for healthy mental and physical stimulation - it keeps them alert, agile and healthy. Feathers and fur on the Play-N-Squeak Shake y'r Tail Feathers cat toy will arouse your cat's natural hunting instinct. Includes catnip. Shipping weight: 1/10 lb.