Thank you for viewing! Yooperlite Bracelet Inner diameter: 16cm 8mm Hidden Beauty: It has a hidden beauty that is difficult to see in normal light, and you can enjoy the contrast that changes completely under a black light. Collector's Item: Due to being a new mineral and its light phenomenon, it is popular among collectors of natural stones and power stones. Meaning/Effect: It is said to have the effect of dispelling anxiety and fear, and enhancing insight, and is said to support breaking bad habits. Yooperlite is a natural stone that attracts many people due to its unique fluorescence and rarity.