The six chunky shape blocks are each designed with fascinating textures - there's a cube, a diamond, a sphere, a triangle, a flower, and the happy Fat Brain logo. But the best part? As kids push the shapes through the elastic bands of the cube, curiosity is sparked and young minds can't help but explore, experiment and discover. It's beautifully simple and amazingly mind-expanding - and frustration-free play! BPA-free. 10 months.