Tuning fork manufacturing and high precision. Aluminum alloy construction for its reliable and rigid strength as well as corrosion-resistant quality. Resonance Box is made of wood, and the is placed on wooden speaker, which has an amplifying effect. The sound quality is not too exaggerated, and you will feel the resonance effect deeper and more stable, listening naturally and comfortably. 432 Hz is the perfect love frequency for deep relaxation, healing repair of the, relieving stress-related pain, improving attention, purifying the and body. Suitable for scenarios such as yoga therapy, SPA aromatherapy, resonance teaching, hearing testing, meditation, etc. 432Hz tuning fork set with elegant appearance and thoughtful design, a great gift for Valentine's Day, Father's Day, graduation, birthday, promotion, holiday, etc. It would bring clear and pleasant sound to all your families. even your lovely pets. Color: Silver + Wood Color Material: Wood + Aluminum Alloy Package Contents: 2 x 2 x