High Quality Material：Tuning fork set is made of high-quality aluminum alloy material with ine workmanship and high precision. Aluminum alloy construction for its dependable and rigid strength as well as its corrosion resistant quality. | Resonance Box：It is made of walnut wood, and the tuning fork is placed on this wooden speaker, which has an amplification effect. The sound quality is not overly exaggerated, and you will feel the resonance effect is more profound and stable, listening naturally and comfortably. | Wide Application：432 hz is the frequency of love that ideal for deep relaxation,DNA repair healing, relieving stress pain, improving attention, purifying the mind and body. Suitable for scenarios such as yoga therapy, SPA aromatherapy, tuning fork resonance teaching, hearing tests, meditation etc. | Nice Gift Idea：432 hz tuning fork set with elegant appearance and considerate design, that is a great gift for Valentine's Day, Father's Day, graduation, birthday, promotion, vacation etc. It would bring a clear and nice sound to all your families, even your cute pets. | Brand Promise：Lrowvenu focuses on quality and details, and is dedicated to the development and manufacture of high-quality tuning forks. Provide high-quality tuning forks for professional therapists and tuning fork users.