Read And Match Dominoes are self-correcting. This will allow the game to be played without adult supervision. The dominoes are designed for young readers who can both recognise common sight words and form words as they sound and blend single sounds. This game be used as an individual activity or played in a similar manner to traditional dominoes by 2-6 children. The wipe clean dominoes are 95mm x 40mm and are printed using bright non-toxic inks. They are supplied complete with instructions in a strong storage box.