This educational toy stem marble run construction toy set come with an easy assembly manual, When building the construction, kids cn develop hand-eye coordination, logical thinking, creativity, color and shape recognition!

• We have already upgrade the quality of this marble set. They made of solid transparent ABS, absolutely non toxic, not easy to break or snapped. Smooth edges avoid scratching hands.

• Learning toys STEM marble race designed to meet each stage of a child's development and encourage learning through play. Marble run makes learning fun, each of the different blocks has a different function help childrens practice their engineering thinking,develop hand-eye coordination, creativity, color and shape recognition, spatial imagination ability.

• Height tailor-made heights for learning build, kids play much more fun! Build various tracks and see marbles go up, down, all around, and fast! Tracks include centrifugal funnels, U-turn slides, windmills, straight slides and gradient slides.

• As a gift for your kids such as christmas and birthday also adults can play with kids,assembling these blocks with your kids and you can make wonderful memory together so enjoy the family time.