3 months & up. Push, pull. chew, wobble, roll and chase! The Infant & Toddler WOBLII Sensory Ball is a simple, yet multi-dimensional ball that is designed to grow with your children as they develop! Made of 100% food grade silicone, the WOBLII Sensory Ball will encourage sensory exploration through differing textures, bright colors and functions. Supporting fine and gross motor skills, your little one will enjoy the push 'n pull nubs, bright colors, sensory textures, woblii-ability and endless fun. BPA and Phthalate Free. Measures 7" x 5" x 5".