KIWI CO STEM CRATES FOR AGES 5-8 ARE A GREAT WAY TO COMBINE S.T.E.A.M. LEARNING WITH FUN ACTIVITIES - PERFECT FOR SUMMER! ⭐️ THE 4 KITS ARE NEW & UNUSED AND INCLUDE : RAINBOW OPTICS (STILL IN THE BOX.) MY BODY & ME, THE ARCADE & THE SCIENCE OF COLOR. THESE 3 KITS WERE MOVED TO ZIPLOCK BAGS AS THE BOXES TOOK UP TO MUCH SPACE IN A SMALL HOME!