This purchase is for the Animatronic David Head Teaching Module, which includes the building plans of the David animatronic head, as well as the .stl file to print the face attachment. For use with Lego EV3, Lego Spike Prime, and Lego Inventor. 
 
password to open building plans: starkid
 
purchase eyes on amazon: 
 
https://www.amazon.com/gp/product/B08HKSH8MC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1