6 ply, 7.5mm shell; 22"x16" bass drum (16 lugs); 16"x16" floor tom (12 lugs); 13"x11" and 12"x10" power toms (12 lugs); 14"x5" wood shell snare drum (12 lugs). Medium weight double braced hardware includes snare, hi-hat and cymbal stands; bass drum pedal and heavy duty retractable bass drum spurs; heavy duty tom holders and mounts. Memory locks.