Product description: TAMA double head concert toms offer a warm, full-bodied sound and unparalleled resonance thanks to a 5mm thick, 6-ply maple shell. Equipped with low-mass lugs, triple-flanged Steel Mighty hoops and TAMA's unique direct Flexi-Mount tom attachment, TAMA double-head concert toms exceed the expectations of the most demanding musicians and withstand Allen rigors of touring. Specifications: Shell maple 5mm, 6 layers Clamping lugs Low-Mass lugsFellePower Craft IIFeature 1Direct Flexi-Mount (US.PAT.NO.10283096) Set consisting of: 6" x 6" TT, 7" x 8" TT, 8" x 10" TT, 9" x 12" TT.