The copper bio tensor is a measuring instrument through movement and is capable of capturing the energy of vibrational fields. The copper bio tensor is widely used in dowsing practices. This professional bio tensor is made of copper and measures approximately 30 cm. DIMENSIONS Approximately 30 cm. USAGE INSTRUCTIONS * Remove rings, bracelets, or any metal piece from the body; * Wash hands and shake them to remove excess accumulated energy; * Be calm and connected with the subject you seek answers for, truly present in body and soul; * Be neutral and not expect a specific answer to avoid any mental interference; * Formulate the question in a closed manner to obtain an answer of "yes," "no," "positive," or "negative."