Rigid with grooves, and makes 6 different sounds; "Squeak, Squeak, Squeak," "Oops! Here we go again!." "Here Kitty, Kitty, Kitty," "Meow, Meow, Meow," "Psst! Psst! Psst!," and "Chirp, Chirp, Chirp." and you can ealy replace the batteries .
This ball is also suitable for mini breed dogs. great toy and great product.
