Meinl Sonic Energy Cosmos Therapy Series Singing Bowls have been designed to accommodate professional meditation and sound therapy workers. With a bellied design created from additional hammering, these bowls generate a sustained deep tone that will fill a room with ambient sounds. When softly tapped or rubbed, Sonic Energy singing bowls release a fascinating, multi-layered, and colorful sound that resonates deeply within the soul. Over a rich fundamental tone, entire waterfalls of singing overtones emerge to float freely in space and unfurl inside the body. Once the sound starts vibrating, it won't stop; even a minute later, a soft reverberation can still be felt.