PST7's base is CuSn8 bronze which stems from the legendary 2002 series and are lathed by Paiste's Swiss hand craftsmen to achieve their distinctive traditional finish. This PST7 bonus crash set includes a pair of 14" hi-hats, a 20" ride and both a 16" and 18" crash in light weights for drummers who like a traditional sound, look and feel. Includes BONUS 18" crash.