Used for healing,Hearing detection,basic education classroom,science projects or meditation, stress relieving, instrument tuning, etc. Fine production & High accuracy , this ergonomic handle is easy to hold. Made of stainless steel, anti-rust, durable & long for time service. Has a smooth surface. It will make a beautiful sound when which helps to relax the body and release stress. Improve learning concentration; Quick send negative emotions, improve inso mnia, promote positive energy., Manufacturer: Ranuw