These Tibetan singing bowls are made so well even a novice can bring them to sing, great quality bowls - Also designed to sing a clear note when struck at the end of a meditation. Suren Shrestha is the importer of these bowls which he has made in his village for his healing practice here in the USA. Each bowl has a beautiful mantra embossed around the outside and inside of the bowl.Small is 3.5", Medium is 4", large is 4.75"approx.