PicassoTiles 70 Piece Marble Run Race Track Magnetic Tiles Magnet Building Block. Promotes problem solving skills, hand-eye coordination, and trains fine motor skills. The construction marble run race track toy stacking building block kit features quick connect magnetized translucent color tiles to easily put pieces together to create the designs of their own master piece simply via using the laws of physics, gravity, brain power, imagination and power of magnets. Equipped with 10 distinctive parts in multiple quantities including columns, slopes, 2 x centrifugal funnels, u-turn, and many others to allow designs of multi-layer 3D tall maze race track structure that enable focus, pay attention, and utilize their imaginations using the creative shapes and pieces to develop the logical sense and combinations required to make the marble run through the path the and maximize the pretend play fun.