Cherry Quartz 10mm Crystal 10mm, 8mm Inner circumference: 16cm It stretches and shrinks a little with the rubber, so some adjustment is possible♪ Crystal: Good luck, purification Cherry Quartz: Enhances spiritual ability, the ability to predict the future, and has the meaning of enhancing feminine charm. After disinfection with alcohol, it will be purified and shipped. Natural stone Cherry Quartz Material: Natural stone Color: Pink Stone material: Natural stone Artificial stone