The pearl session studio select 4pc 22 shell pack nicotine marine pearl features a 22 x 16 bass drum a 10 x 7 rack tom a 12 x 8 rack tom and a 16 x 16 floor tom. This shell pack is constructed of a thin 5.4mm evenply six combination of master grade birch and african mahogany. The birch wood produces enhanced low and high range tones mixing perfectly with the mid range tones of mahogany to offer crisp lows a warm punchy mid range and bright musical highs.the shells are finished with high quality hardware such as pearl superhoops ii tom hoops wooden bass drum hoops and pearl low contact lugs. The controlled punch of pearls fresh 60 degree bearing edge delivers a blend of pre eqd clarity and tonal warmth unique to the session studio select a perfect studio worthy feature to help you achieve the tones youre after.