Fret Daddy is the world's leading manufacturer of *instructional stickers for guitar and bass. We are a San Diego based company dedicated to the mission of music education. We understand, being guitar players ourselves, how difficult it is to understand the vast complex fretboard for a beginning student. Our products and online tutorials are designed to take some of the sting out of the learning process and to help students learn more quickly and effectively. We truly believe our products will help you learn and we stand behind that belief. All sticker sets com with a 100% money back guarantee. If you are unsatisfied for any reason with your purchase, simply send it back to us within 7 days and we will refund your order no questions asked.