Introduce young builders to magnetic construction, sensory exploration and social emotional expression with the comprehensive toddler STEM set, GrippiesShake, Build and Curve. Connect large and small sized magnetic rods to each other or combine them with the overmolded metal ball connectors. The variety of rod styles create a unique structural, rounded and acoustic building experience. Encourage magnetic, auditory and tactile exploration through patterning and 3D construction. This combination Grippies building set is perfect for toddlers to exercise their auditory, fine and gross motor and engineering skills. Available in a 70 piece set. Age 18 months+