The Pocket Morpher is like a pet rock for the clubbing generation. Set it on any of six solid colors to match your mood (or club outfit!) or choose one of the two cool new-agey blended multi-color wash modes, or put it in the color-morph mode that cycles between all the colors! Use the Pocket Morpher as a personal mood light or as a versatile club toy! Uses two long-lasting replaceable lithium CR2016 batteries (included). Each Pocket Morpher is about 1.5" diameter and 1.5" height.