😱COLOR CHANGING LETTERS are NOW AVAILABLE IN OUR BIGGER 2" LETTER SET💦 !! . 🤩 All you need is an environment like water (or air) to change these super cute letters from one color to another🎉! . 👉These letters will change color with water (or air) that is 72 degrees or below (pink to purple) or (yellow to red). . 🌈These were the perfect motivator to get my two-year-old to practice letter recognition and their sounds. 🌈It's also the perfect opportunity to incorporate science color change with play.