This set of 60 wooden dominoes allows children to practise their times tables 1-12. The dominoes are colour coded into 3 levels and are designed to be used one level at a time. Green beginner level includes 1,2,5 and 10 times tables, yellow intermediate features 3,4, and 8 times table and red advanced level includes 6,7,9,11, and 12 times table. All the dominoes are manufactured from sustainably sourced Beech Wood and measure 3.7" (9.5 cm) x 1.1" (3cm). Ages 3 and up.