Pearl's Superior Shell Technology (SST) on this Export 14"x14" floor tom uses a combination of strategically arranged plies of poplar and Asian mahogany and proprietary construction techniques to offer you an incredibly durable shell that maximizes frequency response. Low-mass steel lugs increase resonance. Select woods are chosen based on their unique acoustic properties, then milled to optimal thickness with overlapping scarf joint seams, providing you with a perfect, air-tight fit. All of this makes this Export EXX floor tom a high-quality addition to your Pearl Export kit.