The price is per letter.
A-Z and ampersand.
Each letter is 12" tall and 9-12" wide (depending on letter). The depth of each letter is 1".
If you are planning on covering the foam letters with flowers, we suggest putting a bamboo skewer in the back of the flower, then poking the other end of the skewer through the styrofoam and securing with hot glue. Hot glue alone isn't the best long term solution to make the flowers stick to the foam.