Concept Series is a new line of PDP drums that are available in both all-maple or all-birch shells. All shells are 7-ply, except for the snare which is 10-ply. Through our research with the DW Custom Shop, we have found some particular detail features that have a big effect on sound and quality. We believe every drummer deserves these features, so we included DW-style STM mounting systems, True Pitch tuning, F.A.S.T. tom sizing, proportional counter hoop sizing*, and Remo drum heads. Snare drums come with the DW MAG throw-off and boutique-style copper wires. Bass drums come with die-cast claw hooks, and all drums feature the new retro-inspired dual-turret tube lug. Concept Maple drums are available in six specialty high-gloss finishes, all with chrome hardware, except for Pearlescent Black (black hardware). Concept Birch drums share all of the great features of Concept Maple, but with all-birch shells. They are available in two different configurations with a full range of add-on drums. Choose from two transparent lacquer burst options, both with chrome hardware. Shells: 18x22" Bass Drum w/ Mount 8x10" Tom 9x12" Tom 12x14" Floor Tom 14x16" Floor Tom 5.5x14" Snare Drum Features: Dual-Turret Lug Graduated Counter Hoops Die-Cast Claw Hooks Heads by REMO STM - Suspension Tom Mount System True-Pitch Tension Rods Premium Lacquer Finishes MAG Throw-Off 7-ply Tom/Kick Shells 10-ply Snare Shells Note: Shell pack only. Cymbals and cymbal stands sold separately.