DESC: The Aquarian scale is an original Larry Roark composition, mirroring the tranquil charm of an alpine lake or stream Mezzo Soprano chimes use 1-3/16" diameter tubing and are approximately 38" in overall length These enchanting tubular aluminum chimes blend old world craftsmanship with the latest in technology - harmonizing art and science to uplift the spirit and delight the senses Musicians are impressed with the use of authentic musical scales from around the world - the less knowledgeable just know they sound great The matte black, powder-coated aluminum-alloy tubing will never rust and always looks elegant