Included in this product are TWO full sets of letter and number cards in two different colors. Mix them up or use one color at a time. Each set includes a full set of capital letters and a full set of lowercase letters. Students can match the lowercase with the uppercase letters and create a pair of flip flops. I have also included a set of numbers 0-10 with matching word form of those numbers. Finally, I also created a set of capital letters that, when laid out in keyboard format, will alternate left and right flip flops for the three rows on a keyboard. I use them in my 4th grade classroom this way in creating a large keyboard poster. I hang it on the wall, and my students use it to practice their spelling words, or sometimes they use it as a floor spelling mat and they tap or step on each letter as they spell their words.