Teething tots can relieve sore gums with this set of two Activity Balls. These sustainably-made sensory toys offer babies a satisfying chew and can help them strengthen their grasp and dexterity as they hold, squish, roll and throw the balls. The set comes with a small yellow ball which you can nest inside the larger grey ball. Challenge curious bambinos to see if they can work out how to pull the smaller ball out! A fun game for helping little brains develop.