These are beautiful letters. I have been using them for a year or two - first found them at JoAnn for $1. Now the manufacturer has switched the outer shiny "foil" color to green. It looks just as nice but if you're trying to match existing letters they will not match.
Each pack contains:
AA B C DD EE F G HH II J K LL M NN OO P Q RR SS TT UU V W X Y & Z and a few coordinating floral stickers.
If you run out of a letter you can make some letters into others by pasting pieces of them together. I did this with an F and an L to make another E.