GK418F: 18x7.5 bass, 12x6 tom, 10x5.5 tom, 13x4 snare. GK518FT: 18x7.5 bass, 12x6 tom, 10x5.5 tom, 10x3.5 timbale, 13x4 snare. GK518F: 18x7.5 bass, 12x6 tom, 10x5.5 tom, 8x5 tom, 13x4 snare. GK618FT: 18x7.5 bass, 12x6 tom, 10x5.5 tom, 8x5 tom, 13x4 snare, 10x3.5 timbale.
Hardware includes: HH4000 hihat stand, (x2) BS4300BT boom stands, SS4000BT snare stand, PSK501C bass pedal, tom arms and adapters.