This pyramid is 3 1/2" at the base. The top layer has a large piece of tumbled smoky quartz, a powerful detox and protection stone, as well as a piece of raw shungite and a copper coil, cast in clear olive-colored polyester resin. Both smoky quartz and shugite are grounding stones known for providing EMF protection. The base has brass shavings cast in shimmering opaque mint green polyester resin. This piece will provide EMF protection for one large room in your home. Based on the research of Wilhelm Reich, the combination of metal and crystals cast in resin emits a scalar wave that can mitigate EMF in your environment. People who use scalar energy devices report better sleep, enhanced focus and meditation, and a sense of well-being.