This 3 pages handy "packet" has the phonetics symbols for the vowel sounds. It has their symbol, sound/word examples, tongue height, tongue advancement, lip rounding and tense or lax identification. It also contains the diphthongs and "r-colored" vowels. All of the information you'll need on the vowels in one neat and color-coded place. I used it for my graduate SLP phonetics course as a way to study the vowels so I hope it helps you too!