Parelli Natural Horsemanship levels 1, 2, 3, 4 training materials for equestrians who want to learn natural horsemanship techniques. The set includes four levels of training.The brand of the product is Parelli, and it is not a modified or custom bundle. The product is designed to help equestrians improve their horsemanship skills and build a better relationship with their horses. I bought these new and in excellent shape.