These genuine, high quality crystals are beautifully designed to reflect the sun into rainbow colors as they hang in your window. Utilizing red thread will also activate or increase the Feng Shui properties. (Red silky ribbon included with each hanging crystal) According to Feng Shui, no matter what your KUA number, if you use these to activate the SW corner of your bedroom you will have greater harmony and happines in all your relationships with loved ones. Hanging it in your living room window will bring harmony and happiness to all who live in your home! These are a must have for anyone interested in bringing harmony into their homes! Use the Sea Salts to cleanse crystals upon receipt and at least monthly thereafter to release any negative energies the crystal may accumulate.