Brain Flakes&reg| brand discs from VIAHART are a new construction toy which teaches both boys and girls spatial thinking and lets their imaginations run wild! Every jar contains over 500 discs, which means hours of endless fun and engineering education. In addition to brain building, Brain Flakes discs will 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. They come in a great reusable plastic jar (PET). The discs themselves are made from safe and tested polyethylene (PE). The cap of the jar is made from polypropylene (PP). Our discs are a revolutionary addition to the world of children's and adults' construction toys. Get a Brain Flakes set today! Patent Pending. - Size: 5.63 x 5.63 x 8 in inches | Weighs approximately 1.9 in pounds