EyeCue (IQ Developer) : Elements

Product Type: Eye Cue – Elements Edition
Size: 64×89 mm
It is a deck of playing cards with a certain number of unique animals on each card; such that any two cards from the deck will have only one and one element in common; the person who spots the common element fastest wins!
Learn more: https://www.youtube.com/channel/UCRANQ0ljBXqJSca22ykuGaw