Small heavyweight extra thick cup. This style of cups is very rare to find. High pitched clear tone of this instrument could be used at the end of the healing session to bring the client back to the beta state. Also, this bowl is good to use as a ritual bell at the beginning of self-meditation or group sound meditation. Frequencies: 820-832hz (G#/Ab5). Monaural beats range Alpha. 2362-2374hz (D7+15hz). Monaural beats range Alpha. Includes complementary singing bowl cushion and striking / rubbing mallet R2.