30 Piece Set Magnet Building Tiles Mainly Features NonToxic ABS plastic, ultrasonic process, round edges. Children can play with them safely. Upgraded unique mold pieces and ultrasonic welding for better tightness, prevent breaking apart while playing. CREATIVITY BEYOND IMAGINATION Easy to construct and put away for storage, can create kinds of 2D plane shapes or 3D geometric structures. Great toys to learn letters ( alphabet ), numbers, geometric shapes, colors, math, mathematics. Great little finger toys to develop fine motor skills and mind. Great toys to encourage kids for imagination, creativity, brain development and critical thinking. LEARNING IS FUN Magnetic tile kits are essential for playtime fun on the run. Fits 3 years and older kids, it’s a good way for them to explore the world of geometry and architecture. Package Included : Total 30 Pieces, including 18 *squares, 12* triangles. NonToxic ABS plastic, ultrasonic process, round edges. Children can play with them safely.