Marble Run Compact Set STEM Construction Building Toy for Kids 113 Pcs nib

Marble Run Compact Set STEM Construction Building Toy for Kids 113 Pcs Assembled product measures 16.6" tall x 14.2" wide 83 pieces maze parts and 30 small glass marbles (113 total pieces) Build various tracks and see marbles go up, down, all around, and fast. Perfect marble game toy choice for gifting! With an easy assembly manual, help kids to think about the track direction, shapes and assemble it. Develop hand-eye coordination, logical thinking, creativity, color and shape recognition. This toy contains some small parts and balls. Adult supervision recommended.