Brain Flakes brand discs from VIAHART are a new construction toy that teaches children spatial thinking and lets imaginations run wild! The Build 'n' Build Kit includes over 2500 pieces 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 1.3 inches across and are 1/10th inch thick. They click together and apart easily for all ages and levels of motor skills. - 22 Wheels, 8 Axles, 4 Rotating Connector Pieces - Includes over 2500 interconnecting pieces, 22 Wheels, 8 Axles, 4 Rotating Connector Pieces and an idea booklet with instructions to build a Brain Flakes ball! - Discs easily click together for ages 5+