The Rubbabu Rubbablox Building Blocks is a beginner block set with soft blocks that babies can grasp, push and move to build simple structures. The connector blocks fit snugly into depressions in the blocks, so you can simply push the connectors in to create different shapes. Details: 13 piecesEco-friendly Natural rubber foam materials For ages 12 months and up Contents: 7 spherical connector blocks 6 large cube blocks