The Pair 5 Tuners (set of 2 forks) includes a velvet pouch and a booklet describing both human and animal application for the tuners. The INNER SOUND^® Pair 5 Tuners are a precision-made set of aluminum forks manufactured in the USA to the specifications of INNER SOUND^®, tuned to the pure 5th interval. Pair 5 Tuner Techniques are taught in HTA Level 2.