Simple geometric shape, made of non-allergic steel needle material, Double-sided leather and copper hardware add a touch of texture. Material: cowhide / medical steel needle / steel buckle Size: W3xH4.5cm ░Notes░ Please refer to your own for sensitive skin. If the product is sold, there is no return service. ░Maintenance░ 1 Brass material: no electroplating, it will oxidize and darken over time, and it will be retro yellow fog when worn regularly. 2 plating material: the longer the product is over time, the oxidation becomes darker. 3 glass, ceramic material: avoid falling, collision and extrusion. 4 leather material: using European imported vegetable tanned leather, leather will add dark color with time. 5 When the jewelry is oxidized, it can be wiped with silver cloth to keep it bright. If it is not worn, it is recommended to save it in the zipper bag for extended life. 6 It is recommended to take off the jewelry when bathing, swimming, hot springs or touching any chemicals or makeup products.