Material: queen conch shell, elastic string SIZE: 6.75" Also available: Citrine, lapis lazuli, rose quartz, garden quartz, amethyst, pietersite, moss agate, tourmaline, dendritic agate, fire quartz, golden healer, ocean jasper, obsidian, fluorite, labradorite, moonstone, sunstone, smoky quartz, clear quartz, carnelian, rhodonite, rhodochrosite, garnet, green aventurine, unakite, malachite, chrysoprase, amazonite, apatite, tiger’s eye, lepidolite, prehnite, larimar, and many more.