Grab, chew, wobble, POP! On the top is a silicone button little fingers can't help but push while the bumpy, textured frame provides a satisfying touch of sensory delight.But then... Tilt it, spin it, and let it go - Minds are aglow with fascination as it wobbles and waddles this way and that! Little fingers enjoy pushing the silicone buttonBumpy textures are a delight to feel, soothing for sore gums.