Purchased from Amazon. 【Size】Chain width: 12mm; Chain length: 40cm; Weight: 76g 【Hypoallergenic Stainless Steel】Stainless steel is a material with extremely low allergenicity among metals. 【OK for Baths and the Sea】It has very high corrosion resistance, so it is resistant to rust and discoloration from water and sweat, allowing you to wear your accessories in the bath or sea without worry. 【Easy Care】Stainless steel is a hard metal, so it is scratch-resistant and does not deform easily. Also, when wet, simply wipe it with a dry towel.