Hear Doggy Silent Squeak Martians With Chew Guard Technology Tough Plush Dog Toy Small Green Martian with ultrasonic squeaker and Chew Guard Technology Super tough to stand up to rough playtime fun Features Chew Guard Technology and double stitched seams to last longer than your standard plush toy, GUARANTEED! See below for additional details Available in small and large sizes - Ideal for medium and large size dogs The silent squeaker is perfect for the office and won't disturb your friends at work! Perfect for night time play, too!