ETA hand2mind Wood, Assorted Colors, Dominoes Double-Six Classroom Kit (6 Sets of 28) Encourage playful competition with a classroom set of dominoes Great in the classroom and for building domino races Sets arrive in assorted colors: red, yellow, green, blue, orange, and black Includes 6 sets of double-six dominoes in 6 colors packaged in a plastic storage bin Each set of dominoes includes 28 pieces - 168 tiles in all - each measuring approximately 1-3/4" by 3/4"