Yamaha PHX Phoenix Shell Set, 2 up 2 down configuration, Colour: Sapphire Fade (SPF), chrome Hardware, Set containing: 22"x18" Bass Drum, 10"x07" Tom Tom, 12"x08" Tom Tom, 14"x13" Floor Tom, 16"x15" Floor Tom, shell material: Hybrid Shells with inner layers of Jatoba / Kapur wood and outer layer ash wood, Y.E.S.S. II tom suspension system, Hook Lugs, 30° bearing edge, combination of shell composition and bearing edges make PHX what many described as "the most musical drums one has ever played"