Product Description Brain Flakes brand discs from VIAHART are a new construction toy that teaches children spatial thinking and lets imaginations run wild! The Big Clicks Set includes 40 Jumbo Brain Flakes discs for hours of engineering fun! In addition to brain building, Brain Flakes discs improve the coordination and dexterity of young children, keeping both their minds and bodies active! The discs measure 9.13 inches across and are 0.7 inch thick. They click together easily for ages +3 and all levels of motor skills. They come with a durable building instructions sheet! Our discs are a revolutionary addition to the world of children's and adults' construction toys.