The Istanbul Agop 11'', 13'' & 15'' 3 Piece Clap Stack is a unique product from Istanbul, featuring three uniquely shaped and tempered cymbals stacked on top of each other. The aim of this product is to recreate an acoustic version of the analog 8-bit handclap samples that have been an integral part of music for generations. The Clap Stack can be adjusted to edit the decay by loosening or tightening your cymbal felts and wing nuts.