Arduino Uno (by Polytech R2 STEM kit) - Kit's Vehicle construction

[@JacdacMakersKidsEdPlugan-bt4ut]

Again, educators will see that this system uses robust connections, more suited to schools and school aged children. Much less "fiddley" than jumper wires and even stronger than Grove connectors. Well done to this company !

[@fotiosfotinakis8359]

Yes, they seem that at least they tried to avoid the clamsiness of using either, simple jumper wires or Grove connections and moved forward. Mind you, LEGO use similar connectors in NXT & EV3 Mindstorms.