DISCOVERY Marble Run Set 321 pieces #mindblown Stem

The DISCOVERY Marble Run Set is a STEM toy designed by Discovery Education in 2019. Recommended for ages 6 and up, this educational toy is perfect for children aged 8-16 years who enjoy engaging in hands-on learning activities in the field of science and nature. With its mind-blowing complexity, this marble run set is sure to provide hours of entertainment and educational value for young learners. Please note all pieces are included except 2 "A" connectors from the original 321 piece set.