I used it for about a week. It was effective, but I don't like necklaces, so I'll give it to someone who doesn't mind. DisMoi DisMoi Series For those who want to experience the body's natural power. DisMoi was born in 2005 through a technical collaboration with an Olympic physical trainer, combining the unique "Frequency Processing R" technology and material strength to create a next-generation body conditioning tool brand. What is "Frequency Processing®"? "Frequency Processing®" is the name of a unique processing step applied after the necklace is manufactured. The characteristic of "Frequency Processing®" is to identify the main 20-30 types of frequencies inherent in the body and compress and transfer them to the product, causing resonance with the body's frequencies, thereby regulating the body's functions. This is a unique and special technology and method. Product Specifications DisMoi DisMoi Sports ■Size 42cm for each color ■Color Baked finish, changes depending on the angle. The colorful design is based on the motifs of "diversity" and "light spectrum." ■Package Dedicated package also used for jewelry. Material SUS316L surgical stainless steel Highly corrosion-resistant and hard, providing reliability. Magnets are not used. It does not affect pacemakers or watches. As it is metal, please be careful when using it in saunas or high-temperature places. How to Care for It If you are concerned about dirt, rinse it with running water (water or lukewarm water) and wipe it thoroughly with a soft towel. Country of Manufacture: China/Japan Advertising Responsibility: Coco Seven Co., Ltd. (050-3551-7524) Manufacturer: Daiko International Co., Ltd. (0120-981-752)