(1) - These toys are interactive and sensory-stimulating - this is an active plush toy. Auto shake and makes sound that attract dogs to hunt and have fun with it! When turned on, the ball's barking with shaking will stop in 10-15 seconds, when pet touch or shakes the toy, it will woof shaking again. or activate again by shaking motion or powerful touching. Includes a dog sound effect to Interactive dogs and add sensory-stimulating. (2) - Providing tons of interactive fun, The blue elf by The DDS Store will keep your dog busy and on his toes. Watch your pet chase The blue elf as it barks, shakes and rolls unpredictably around the room! The blue elf will keep your dog entertained for hours, making it the perfect companion!. (3) - The plush cover is soft and durable, plush covers washable, longer use time. you can open the velcro of plush cover, take out the ball and wash the cover (4) - One of The Best Interactive Toy! Great For Dogs of All Ages. the Interactive squeaky dogs and cats toys are sure to become your furry friend’s best friend. these plush dog toys products can make life with your pooch happier, healthier, and much more fun. 1 Piece