MAG-GENIUS SERIES 1 MORE VALUE THAN ANY OTHER SET!! 
Mag-genius 142 piece set includes 3 car bases with wheels and fifteen different shapes so that kids can now stretch their imagination to the next level. More shapes means more designs, and more designs means more hours of fun play.
Educational Fun: Mag-genius shapes and patterns provide great motor skills. Encourages imaginative and creative play, and enhances math, geometry, and science skills.
The set comes with over 140 brightly colored, translucent pieces. + A Plastic latch storage bin. There are triangles in three different sizes and two square sizes. Magnets are inserted inside the edges and that's about all you need to know. The magnets are strong enough to construct pretty solid structures, These pieces got a real workout but never broke or shattered. Parents noted that while the basic idea is building and playing they saw that their children were learning physics, geometry, math, spatial reasoning and architecture without even knowing it. 
MAG-GENIUS 143 Magnet tiles Toy set Includes: 
 42 Small Square tiles 18 Equilateral Triangle Magnet tiles 12 Right Triangle Magnet Building Tile 8 Isosceles Trianlge Magnet Tile 6 Large Square Magnet tiles Playing Boards 3 Magnet Tiles Cars, Trucks 2 Four Split Window Magnet Tiles 2 Two Split Window Magnet Tiles 2 Hollow Quare Magnet Tile 2 Arch Square Magnet Tile 8 Castle Top Magnet Toy Add on 6 Ladder Magnet Toy Add on 4 L Shaped Magnet Tiles 8 Rectangular Magnet Tiles 8 All New 2017 Design Cylinder Cones Round 3D Magnet Tiles 12 All New 2017 Design Cylinder Round 3D Magnet Tiles