Hear Doggy Ultrasonic Dog Toy, Set of 2 Deers&hellip; Ultrasonic toys are made with a squeaker that only dogs can hear, so no more enduring the high-pitched repetition of annoying squeakers This sturdy toy is made using proprietary chew guard technology, a manufacturing process that adds a super strong, durable liner to the soft plush toy, specifically engineered to withstand tough play Flat and under-stuffed so there is no mess to clean up if your dog breaks the seams Cute, rugged and made for hour after hour of chewing fun. Gives your pet the same sensation and enjoyment of traditional squeaky toys Pack of 2