The MEINL Sonic Energy 440Hz brow chakra crystal singing bowl is crafted from high-purity quartz designed for extremely long-lasting resonance. Its frosted white finish creates a pleasant aura, while the spherical tone spreads through your entire surrounding space when gently struck or rubbed. You'll receive a silicone ring that protects the bowl and ensures optimal resonance. Available in 12", 14" and 16" diameters, this singing bowl is tuned to A4/a' = 440Hz. Utilize its powerful vibrations for chakra healing, meditation, sound therapy, yoga practice, improving your home's feng shui, achieving emotional balance or simply as a unique decorative piece.