No more tedious and messy taping. Easy to apply, durable & effective. Save time and money, plus just watch how quickly beginning programs will improve. Students gain security & immediate feedback on their intonation. Color-coded basic model makes coordinating group classes easy & simple for both teacher & student. Developed in conjunction with Dr. Phillip Coonce, the inventor of the original Don't Fret, these exclusive basic decals are available packaged, or in bulk for additional savings.