The complete halilit sensory ball mega pack full of sensory delight these soft textured easy grip easy to catch set of 4 balls are a perfect first ball for little ones baby will appreciate the nubby texture of the sensory balls promoting the development of fine and gross motor skills massage babys back and feet to create a soothing sensation or develop hand eye coordination by playing catch pack includes 10cm sensory ball 10cm see me sensory ball 18cm sensory ball and 18cm see me sen