A wonderful way to turn your crystal tumblestones or small rough crystals into a pendant. These silver metal or copper metal spiral holders expands to accommodate crystals up to about 3.5cm by about 2cm. They can then be hung on a leather thong or a chain or even added to a keychain to make a keyring. This is an inexpensive way to wear your crystals and to get the energy of the crystal into your auric field. You can even create your own pendulum using a cage and interchange your crystal as needed!