These domino sets are a classroom kit that include 12 sets with mesh bags. Our sturdy plastic double-six dominoes measure 1 ½ x ¾ “, set of 28, 1 full set of each color pink, orange, turquoise, teal, purple, violet. (2 of each color in MN28). The colors allow for students to easily sort through and organize a full set when cleaning up. Suitable for Kindergarten – 6th grades.