These 8-ply birch/mahogany Yamaha concert toms are constructed using the Yamaha Air Seal System to produce a quality drum and to achieve the distinct Yamaha sound. Birch provides attack and clarity while the mahogany provides warmth and fullness of sound. The Air-Seal System process ensures that shells start round and stay round; an in-round shell tunes clearer and provides a pure fundamental tone. The hoops are 1.6mm and triple-flanged for traditional sound, easy tuning and enhanced low-end partials. This set of concert toms includes a WS-865A heavy-duty stand. The stand features double braced legs for stability.