✔Only non-toxic ABS plastic food grade material used; safe smooth edge without sharpness. Perfect safe montessori toys for 3 year old boys and girls above to play. ✔The magnetic building blocks can develop motor skill and shape perception; inspiring creation and imagination with magnetic tiles.They also help kids develop motor skills and creative thinking ✔This magnet toys set can be combined into many patterns, such as dogs, planes,house and other magnets blocks construction. ✔Super easy to clean them up since magnet sticks together. ✔Basic magnetic tiles set for beginners or refill your existing magnetic blocks of other brand to add model opinions. More pieces, more possibilities.