Singing Quartz Crystal Pyramid Chime 6" Each pyramid is handmade. They vary slightly from one another as would be expected. This size pyramid measures 6"x6"x5.25" tall This pyramid is welded together from 10mm rods. All pyramids are paired with a small Bamboo Magic Mallet for rub or striking play. The sound file and pictures above are typical of a quartz pyramid this size, the instrument you receive may vary from this as it is only an example. This specific instrument is from our bulk stock. We do not guarantee any specific note for this product. A quartz pyramid is a chime like instrument with a luxurious sustain. We had our resident quartz technician create a few of each size to give a broad range of tones. Smaller pyramids will have higher tones while the larger pyramids have a lower fundamental tone. What sets the pyramid apart from other quartz instruments is the built in interference achieved by having all of the quartz rods ringing out at one time.