This super cool rainbow comes in uppercase and lowercase alphabet sets and uppercase and lowercase sight word, sets, as well math sets! The alphabet sets come with one of each letter while then sight word sets come with duplicates of ADEFGLMOPT for spelling purposes. You can’t spell ‘Mom’ and ‘Dad’ without duplicates! If you’d like to add extra duplicates, please find the listing for ‘single letter add on with set’. Math sets come with two each of 0-9, +, - and =. Take your pick!