Hung in windows, crystals can bring chi energy from the outside into dark areas of your home or office.A crystal placed in the south-east, north-west, or center of a room can aid in stimulating prosperity. Only the finest quality lead crystal is used which makes them the most valued type of crystal. Each is made with a hole for attaching to projects, or for hanging in your window.They make great gifts! The sparkle in this crystal makes it a gorgeous and easy gift or ornament! Has a hole drilled to make hanging simple.