Hedstrom Sensory Knobby Balls,  4-Inch 2-Color Balls, 4 Balls Lightweight, soft, pliable balls are easy for babies and kids to grasp, roll and throw and helps improve fine and gross motor skills Finger friendly texture helps promote tactile exploration and improves hand-eye coordination Softly bumpy balls provide massage stimulation. Can be used on kids and adults. BPA, Latex and Phthalate free Assorted Colors Recommended for 6+ months. BPA, Latex and Phthalate free.