... materials 4.CE, Rohs certificate 5.easy to accept IQ development educational toy paper scissors rock ... for children 2 year-old and up.Through handing the puzzle pieces over and over, ... , science and Environment. This product is designe to be intertive, enriching and colorful; we guarantee ... over vertically and horizontally(up,down,left,right) to scroll through one lattice after, but cannot jump over. ...