Description: The Ball that Changes from Smooth to Spiked These Inside-Out Balls provide double the sensory fun! Use as a regular ball to work on fine motor skills development and hand-eye coordination, or flip it inside-out for a truly tactile experience. Squish and stretch these with your hands or try walking on them with bare feet. Use as a fidget toy and a source of tactile stimulation at home or on the go. Made from thermal plastic rubber (TPR). Helps improve hand-eye coordination Great for anyone with sensory processing disorder and coordination challenges Makes a great fidget toy for busy fingers