Smiles will abound as your little one tosses, shakes, and rolls Infantino Caterpillar Activity Balls around. Play with each one individually or put them together to create an adorable caterpillar. Five balls with colourful rattle beads, spinning panel, fun textures, smiling face, rubber antennae for teething are included to keep baby busy. The balls connect with vent-like ridge connectors. It encourages fine motor skills, sensory development, hand-eye coordination.